21378632

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{641}}^1$

素因数の和:1037

約数の個数: 32

約数和(自身を含む): 43912800

約数和(自身を除く): 22534168

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 379, 641, 758, 1282, 1516, 2564, 3032, 4169, 5128, 7051, 8338, 14102, 16676, 28204, 33352, 56408, 242939, 485878, 971756, 1943512, 2672329, 5344658, 10689316, 21378632]

約数ペア:

[(1, 21378632), (2, 10689316), (4, 5344658), (8, 2672329), (11, 1943512), (22, 971756), (44, 485878), (88, 242939), (379, 56408), (641, 33352), (758, 28204), (1282, 16676), (1516, 14102), (2564, 8338), (3032, 7051), (4169, 5128)]