21459712

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{4931}}^1$

素因数の和:4964

約数の個数: 36

約数和(自身を含む): 45364536

約数和(自身を除く): 23904824

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 544, 1088, 2176, 4352, 4931, 9862, 19724, 39448, 78896, 83827, 157792, 167654, 315584, 335308, 631168, 670616, 1262336, 1341232, 2682464, 5364928, 10729856, 21459712]

約数ペア:

[(1, 21459712), (2, 10729856), (4, 5364928), (8, 2682464), (16, 1341232), (17, 1262336), (32, 670616), (34, 631168), (64, 335308), (68, 315584), (128, 167654), (136, 157792), (256, 83827), (272, 78896), (544, 39448), (1088, 19724), (2176, 9862), (4352, 4931)]