20570472

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21977}}^1$

素因数の和:22002

約数の個数: 48

約数和(自身を含む): 59999940

約数和(自身を除く): 39429468

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21977, 43954, 65931, 87908, 131862, 175816, 197793, 263724, 285701, 395586, 527448, 571402, 791172, 857103, 1142804, 1582344, 1714206, 2285608, 2571309, 3428412, 5142618, 6856824, 10285236, 20570472]

約数ペア:

[(1, 20570472), (2, 10285236), (3, 6856824), (4, 5142618), (6, 3428412), (8, 2571309), (9, 2285608), (12, 1714206), (13, 1582344), (18, 1142804), (24, 857103), (26, 791172), (36, 571402), (39, 527448), (52, 395586), (72, 285701), (78, 263724), (104, 197793), (117, 175816), (156, 131862), (234, 87908), (312, 65931), (468, 43954), (936, 21977)]