20355664

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10691}}^1$

素因数の和:10723

約数の個数: 40

約数和(自身を含む): 47729088

約数和(自身を除く): 27373424

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 10691, 21382, 42764, 74837, 85528, 149674, 171056, 181747, 299348, 363494, 598696, 726988, 1197392, 1272229, 1453976, 2544458, 2907952, 5088916, 10177832, 20355664]

約数ペア:

[(1, 20355664), (2, 10177832), (4, 5088916), (7, 2907952), (8, 2544458), (14, 1453976), (16, 1272229), (17, 1197392), (28, 726988), (34, 598696), (56, 363494), (68, 299348), (112, 181747), (119, 171056), (136, 149674), (238, 85528), (272, 74837), (476, 42764), (952, 21382), (1904, 10691)]