20955328

素因数分解:

$2^6\times {\mathrm{19}}^2\times {\mathrm{907}}^1$

素因数の和:957

約数の個数: 42

約数和(自身を含む): 43935396

約数和(自身を除く): 22980068

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 361, 608, 722, 907, 1216, 1444, 1814, 2888, 3628, 5776, 7256, 11552, 14512, 17233, 23104, 29024, 34466, 58048, 68932, 137864, 275728, 327427, 551456, 654854, 1102912, 1309708, 2619416, 5238832, 10477664, 20955328]

約数ペア:

[(1, 20955328), (2, 10477664), (4, 5238832), (8, 2619416), (16, 1309708), (19, 1102912), (32, 654854), (38, 551456), (64, 327427), (76, 275728), (152, 137864), (304, 68932), (361, 58048), (608, 34466), (722, 29024), (907, 23104), (1216, 17233), (1444, 14512), (1814, 11552), (2888, 7256), (3628, 5776)]