20818984

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4723}}^1$

素因数の和:4777

約数の個数: 32

約数和(自身を含む): 42516000

約数和(自身を除く): 21697016

約数列:

[1, 2, 4, 8, 19, 29, 38, 58, 76, 116, 152, 232, 551, 1102, 2204, 4408, 4723, 9446, 18892, 37784, 89737, 136967, 179474, 273934, 358948, 547868, 717896, 1095736, 2602373, 5204746, 10409492, 20818984]

約数ペア:

[(1, 20818984), (2, 10409492), (4, 5204746), (8, 2602373), (19, 1095736), (29, 717896), (38, 547868), (58, 358948), (76, 273934), (116, 179474), (152, 136967), (232, 89737), (551, 37784), (1102, 18892), (2204, 9446), (4408, 4723)]