21374772

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 52852800

約数和(自身を除く): 31478028

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 241, 389, 482, 723, 778, 964, 1167, 1446, 1556, 2334, 2892, 4579, 4668, 7391, 9158, 13737, 14782, 18316, 22173, 27474, 29564, 44346, 54948, 88692, 93749, 187498, 281247, 374996, 562494, 1124988, 1781231, 3562462, 5343693, 7124924, 10687386, 21374772]

約数ペア:

[(1, 21374772), (2, 10687386), (3, 7124924), (4, 5343693), (6, 3562462), (12, 1781231), (19, 1124988), (38, 562494), (57, 374996), (76, 281247), (114, 187498), (228, 93749), (241, 88692), (389, 54948), (482, 44346), (723, 29564), (778, 27474), (964, 22173), (1167, 18316), (1446, 14782), (1556, 13737), (2334, 9158), (2892, 7391), (4579, 4668)]