21102912280

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7874221}}^1$

素因数の和:7874299

約数の個数: 32

約数和(自身を含む): 48190238640

約数和(自身を除く): 27087326360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7874221, 15748442, 31496884, 39371105, 62993768, 78742210, 157484420, 314968840, 527572807, 1055145614, 2110291228, 2637864035, 4220582456, 5275728070, 10551456140, 21102912280]

約数ペア:

[(1, 21102912280), (2, 10551456140), (4, 5275728070), (5, 4220582456), (8, 2637864035), (10, 2110291228), (20, 1055145614), (40, 527572807), (67, 314968840), (134, 157484420), (268, 78742210), (335, 62993768), (536, 39371105), (670, 31496884), (1340, 15748442), (2680, 7874221)]