20984784

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{10663}}^1$

素因数の和:10715

約数の個数: 40

約数和(自身を含む): 55538112

約数和(自身を除く): 34553328

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 10663, 21326, 31989, 42652, 63978, 85304, 127956, 170608, 255912, 437183, 511824, 874366, 1311549, 1748732, 2623098, 3497464, 5246196, 6994928, 10492392, 20984784]

約数ペア:

[(1, 20984784), (2, 10492392), (3, 6994928), (4, 5246196), (6, 3497464), (8, 2623098), (12, 1748732), (16, 1311549), (24, 874366), (41, 511824), (48, 437183), (82, 255912), (123, 170608), (164, 127956), (246, 85304), (328, 63978), (492, 42652), (656, 31989), (984, 21326), (1968, 10663)]