21562816

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:413

約数の個数: 56

約数和(自身を含む): 47274480

約数和(自身を除く): 25711664

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 109, 176, 218, 281, 352, 436, 562, 704, 872, 1124, 1199, 1744, 2248, 2398, 3091, 3488, 4496, 4796, 6182, 6976, 8992, 9592, 12364, 17984, 19184, 24728, 30629, 38368, 49456, 61258, 76736, 98912, 122516, 197824, 245032, 336919, 490064, 673838, 980128, 1347676, 1960256, 2695352, 5390704, 10781408, 21562816]

約数ペア:

[(1, 21562816), (2, 10781408), (4, 5390704), (8, 2695352), (11, 1960256), (16, 1347676), (22, 980128), (32, 673838), (44, 490064), (64, 336919), (88, 245032), (109, 197824), (176, 122516), (218, 98912), (281, 76736), (352, 61258), (436, 49456), (562, 38368), (704, 30629), (872, 24728), (1124, 19184), (1199, 17984), (1744, 12364), (2248, 9592), (2398, 8992), (3091, 6976), (3488, 6182), (4496, 4796)]