21007243341

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{54601}}^1$

素因数の和:54842

約数の個数: 48

約数和(自身を含む): 35979660288

約数和(自身を除く): 14972416947

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 197, 217, 279, 591, 651, 1379, 1773, 1953, 4137, 6107, 12411, 18321, 42749, 54601, 54963, 128247, 163803, 382207, 384741, 491409, 1146621, 1692631, 3439863, 5077893, 10756397, 11848417, 15233679, 32269191, 35545251, 75294779, 96807573, 106635753, 225884337, 333448307, 677653011, 1000344921, 2334138149, 3001034763, 7002414447, 21007243341]

約数ペア:

[(1, 21007243341), (3, 7002414447), (7, 3001034763), (9, 2334138149), (21, 1000344921), (31, 677653011), (63, 333448307), (93, 225884337), (197, 106635753), (217, 96807573), (279, 75294779), (591, 35545251), (651, 32269191), (1379, 15233679), (1773, 11848417), (1953, 10756397), (4137, 5077893), (6107, 3439863), (12411, 1692631), (18321, 1146621), (42749, 491409), (54601, 384741), (54963, 382207), (128247, 163803)]