21997896

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^2\times {\mathrm{2539}}^1$

素因数の和:2586

約数の個数: 48

約数和(自身を含む): 58064400

約数和(自身を除く): 36066504

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 361, 456, 722, 1083, 1444, 2166, 2539, 2888, 4332, 5078, 7617, 8664, 10156, 15234, 20312, 30468, 48241, 60936, 96482, 144723, 192964, 289446, 385928, 578892, 916579, 1157784, 1833158, 2749737, 3666316, 5499474, 7332632, 10998948, 21997896]

約数ペア:

[(1, 21997896), (2, 10998948), (3, 7332632), (4, 5499474), (6, 3666316), (8, 2749737), (12, 1833158), (19, 1157784), (24, 916579), (38, 578892), (57, 385928), (76, 289446), (114, 192964), (152, 144723), (228, 96482), (361, 60936), (456, 48241), (722, 30468), (1083, 20312), (1444, 15234), (2166, 10156), (2539, 8664), (2888, 7617), (4332, 5078)]