21999472

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{523}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 46782720

約数和(自身を除く): 24783248

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 239, 478, 523, 956, 1046, 1912, 2092, 2629, 3824, 4184, 5258, 5753, 8368, 10516, 11506, 21032, 23012, 42064, 46024, 92048, 124997, 249994, 499988, 999976, 1374967, 1999952, 2749934, 5499868, 10999736, 21999472]

約数ペア:

[(1, 21999472), (2, 10999736), (4, 5499868), (8, 2749934), (11, 1999952), (16, 1374967), (22, 999976), (44, 499988), (88, 249994), (176, 124997), (239, 92048), (478, 46024), (523, 42064), (956, 23012), (1046, 21032), (1912, 11506), (2092, 10516), (2629, 8368), (3824, 5753), (4184, 5258)]