21131964

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{83857}}^1$

素因数の和:83874

約数の個数: 36

約数和(自身を含む): 61048624

約数和(自身を除く): 39916660

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 83857, 167714, 251571, 335428, 503142, 586999, 754713, 1006284, 1173998, 1509426, 1760997, 2347996, 3018852, 3521994, 5282991, 7043988, 10565982, 21131964]

約数ペア:

[(1, 21131964), (2, 10565982), (3, 7043988), (4, 5282991), (6, 3521994), (7, 3018852), (9, 2347996), (12, 1760997), (14, 1509426), (18, 1173998), (21, 1006284), (28, 754713), (36, 586999), (42, 503142), (63, 335428), (84, 251571), (126, 167714), (252, 83857)]