21455312

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:435

約数の個数: 40

約数和(自身を含む): 43021056

約数和(自身を除く): 21565744

約数列:

[1, 2, 4, 8, 16, 47, 94, 103, 188, 206, 277, 376, 412, 554, 752, 824, 1108, 1648, 2216, 4432, 4841, 9682, 13019, 19364, 26038, 28531, 38728, 52076, 57062, 77456, 104152, 114124, 208304, 228248, 456496, 1340957, 2681914, 5363828, 10727656, 21455312]

約数ペア:

[(1, 21455312), (2, 10727656), (4, 5363828), (8, 2681914), (16, 1340957), (47, 456496), (94, 228248), (103, 208304), (188, 114124), (206, 104152), (277, 77456), (376, 57062), (412, 52076), (554, 38728), (752, 28531), (824, 26038), (1108, 19364), (1648, 13019), (2216, 9682), (4432, 4841)]