21225490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14843}}^1$

素因数の和:14874

約数の個数: 32

約数和(自身を含む): 44888256

約数和(自身を除く): 23662766

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14843, 29686, 74215, 148430, 163273, 192959, 326546, 385918, 816365, 964795, 1632730, 1929590, 2122549, 4245098, 10612745, 21225490]

約数ペア:

[(1, 21225490), (2, 10612745), (5, 4245098), (10, 2122549), (11, 1929590), (13, 1632730), (22, 964795), (26, 816365), (55, 385918), (65, 326546), (110, 192959), (130, 163273), (143, 148430), (286, 74215), (715, 29686), (1430, 14843)]