21212670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:537

約数の個数: 64

約数和(自身を含む): 53996544

約数和(自身を除く): 32783874

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 71, 115, 138, 142, 213, 230, 345, 355, 426, 433, 690, 710, 866, 1065, 1299, 1633, 2130, 2165, 2598, 3266, 4330, 4899, 6495, 8165, 9798, 9959, 12990, 16330, 19918, 24495, 29877, 30743, 48990, 49795, 59754, 61486, 92229, 99590, 149385, 153715, 184458, 298770, 307430, 461145, 707089, 922290, 1414178, 2121267, 3535445, 4242534, 7070890, 10606335, 21212670]

約数ペア:

[(1, 21212670), (2, 10606335), (3, 7070890), (5, 4242534), (6, 3535445), (10, 2121267), (15, 1414178), (23, 922290), (30, 707089), (46, 461145), (69, 307430), (71, 298770), (115, 184458), (138, 153715), (142, 149385), (213, 99590), (230, 92229), (345, 61486), (355, 59754), (426, 49795), (433, 48990), (690, 30743), (710, 29877), (866, 24495), (1065, 19918), (1299, 16330), (1633, 12990), (2130, 9959), (2165, 9798), (2598, 8165), (3266, 6495), (4330, 4899)]