21620138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{853}}^1$

素因数の和:926

約数の個数: 32

約数和(自身を含む): 36892800

約数和(自身を除く): 15272662

約数列:

[1, 2, 19, 23, 29, 38, 46, 58, 437, 551, 667, 853, 874, 1102, 1334, 1706, 12673, 16207, 19619, 24737, 25346, 32414, 39238, 49474, 372761, 470003, 568951, 745522, 940006, 1137902, 10810069, 21620138]

約数ペア:

[(1, 21620138), (2, 10810069), (19, 1137902), (23, 940006), (29, 745522), (38, 568951), (46, 470003), (58, 372761), (437, 49474), (551, 39238), (667, 32414), (853, 25346), (874, 24737), (1102, 19619), (1334, 16207), (1706, 12673)]