19911276

素因数分解:

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

素因数の和:692

約数の個数: 108

約数和(自身を含む): 63322896

約数和(自身を除く): 43411620

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 121, 126, 132, 154, 198, 231, 242, 252, 308, 363, 396, 462, 484, 653, 693, 726, 847, 924, 1089, 1306, 1386, 1452, 1694, 1959, 2178, 2541, 2612, 2772, 3388, 3918, 4356, 4571, 5082, 5877, 7183, 7623, 7836, 9142, 10164, 11754, 13713, 14366, 15246, 18284, 21549, 23508, 27426, 28732, 30492, 41139, 43098, 50281, 54852, 64647, 79013, 82278, 86196, 100562, 129294, 150843, 158026, 164556, 201124, 237039, 258588, 301686, 316052, 452529, 474078, 553091, 603372, 711117, 905058, 948156, 1106182, 1422234, 1659273, 1810116, 2212364, 2844468, 3318546, 4977819, 6637092, 9955638, 19911276]

約数ペア:

[(1, 19911276), (2, 9955638), (3, 6637092), (4, 4977819), (6, 3318546), (7, 2844468), (9, 2212364), (11, 1810116), (12, 1659273), (14, 1422234), (18, 1106182), (21, 948156), (22, 905058), (28, 711117), (33, 603372), (36, 553091), (42, 474078), (44, 452529), (63, 316052), (66, 301686), (77, 258588), (84, 237039), (99, 201124), (121, 164556), (126, 158026), (132, 150843), (154, 129294), (198, 100562), (231, 86196), (242, 82278), (252, 79013), (308, 64647), (363, 54852), (396, 50281), (462, 43098), (484, 41139), (653, 30492), (693, 28732), (726, 27426), (847, 23508), (924, 21549), (1089, 18284), (1306, 15246), (1386, 14366), (1452, 13713), (1694, 11754), (1959, 10164), (2178, 9142), (2541, 7836), (2612, 7623), (2772, 7183), (3388, 5877), (3918, 5082), (4356, 4571)]