21098734

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{173}}^1\times {\mathrm{211}}^1$

素因数の和:420

約数の個数: 24

約数和(自身を含む): 33973848

約数和(自身を除く): 12875114

約数列:

[1, 2, 17, 34, 173, 211, 289, 346, 422, 578, 2941, 3587, 5882, 7174, 36503, 49997, 60979, 73006, 99994, 121958, 620551, 1241102, 10549367, 21098734]

約数ペア:

[(1, 21098734), (2, 10549367), (17, 1241102), (34, 620551), (173, 121958), (211, 99994), (289, 73006), (346, 60979), (422, 49997), (578, 36503), (2941, 7174), (3587, 5882)]