21721392

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{653}}^1$

素因数の和:688

約数の個数: 160

約数和(自身を含む): 77852160

約数和(自身を除く): 56130768

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 27, 28, 33, 36, 42, 44, 48, 54, 56, 63, 66, 72, 77, 84, 88, 99, 108, 112, 126, 132, 144, 154, 168, 176, 189, 198, 216, 231, 252, 264, 297, 308, 336, 378, 396, 432, 462, 504, 528, 594, 616, 653, 693, 756, 792, 924, 1008, 1188, 1232, 1306, 1386, 1512, 1584, 1848, 1959, 2079, 2376, 2612, 2772, 3024, 3696, 3918, 4158, 4571, 4752, 5224, 5544, 5877, 7183, 7836, 8316, 9142, 10448, 11088, 11754, 13713, 14366, 15672, 16632, 17631, 18284, 21549, 23508, 27426, 28732, 31344, 33264, 35262, 36568, 41139, 43098, 47016, 50281, 54852, 57464, 64647, 70524, 73136, 82278, 86196, 94032, 100562, 109704, 114928, 123417, 129294, 141048, 150843, 164556, 172392, 193941, 201124, 219408, 246834, 258588, 282096, 301686, 329112, 344784, 387882, 402248, 452529, 493668, 517176, 603372, 658224, 775764, 804496, 905058, 987336, 1034352, 1206744, 1357587, 1551528, 1810116, 1974672, 2413488, 2715174, 3103056, 3620232, 5430348, 7240464, 10860696, 21721392]

約数ペア:

[(1, 21721392), (2, 10860696), (3, 7240464), (4, 5430348), (6, 3620232), (7, 3103056), (8, 2715174), (9, 2413488), (11, 1974672), (12, 1810116), (14, 1551528), (16, 1357587), (18, 1206744), (21, 1034352), (22, 987336), (24, 905058), (27, 804496), (28, 775764), (33, 658224), (36, 603372), (42, 517176), (44, 493668), (48, 452529), (54, 402248), (56, 387882), (63, 344784), (66, 329112), (72, 301686), (77, 282096), (84, 258588), (88, 246834), (99, 219408), (108, 201124), (112, 193941), (126, 172392), (132, 164556), (144, 150843), (154, 141048), (168, 129294), (176, 123417), (189, 114928), (198, 109704), (216, 100562), (231, 94032), (252, 86196), (264, 82278), (297, 73136), (308, 70524), (336, 64647), (378, 57464), (396, 54852), (432, 50281), (462, 47016), (504, 43098), (528, 41139), (594, 36568), (616, 35262), (653, 33264), (693, 31344), (756, 28732), (792, 27426), (924, 23508), (1008, 21549), (1188, 18284), (1232, 17631), (1306, 16632), (1386, 15672), (1512, 14366), (1584, 13713), (1848, 11754), (1959, 11088), (2079, 10448), (2376, 9142), (2612, 8316), (2772, 7836), (3024, 7183), (3696, 5877), (3918, 5544), (4158, 5224), (4571, 4752)]