20836624

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:683

約数の個数: 40

約数和(自身を含む): 42214808

約数和(自身を除く): 21378184

約数列:

[1, 2, 4, 8, 16, 37, 61, 74, 122, 148, 244, 296, 488, 577, 592, 976, 1154, 2257, 2308, 4514, 4616, 9028, 9232, 18056, 21349, 35197, 36112, 42698, 70394, 85396, 140788, 170792, 281576, 341584, 563152, 1302289, 2604578, 5209156, 10418312, 20836624]

約数ペア:

[(1, 20836624), (2, 10418312), (4, 5209156), (8, 2604578), (16, 1302289), (37, 563152), (61, 341584), (74, 281576), (122, 170792), (148, 140788), (244, 85396), (296, 70394), (488, 42698), (577, 36112), (592, 35197), (976, 21349), (1154, 18056), (2257, 9232), (2308, 9028), (4514, 4616)]