21286832

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6131}}^1$

素因数の和:6177

約数の個数: 40

約数和(自身を含む): 48663552

約数和(自身を除く): 27376720

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 6131, 12262, 24524, 42917, 49048, 85834, 98096, 171668, 190061, 343336, 380122, 686672, 760244, 1330427, 1520488, 2660854, 3040976, 5321708, 10643416, 21286832]

約数ペア:

[(1, 21286832), (2, 10643416), (4, 5321708), (7, 3040976), (8, 2660854), (14, 1520488), (16, 1330427), (28, 760244), (31, 686672), (56, 380122), (62, 343336), (112, 190061), (124, 171668), (217, 98096), (248, 85834), (434, 49048), (496, 42917), (868, 24524), (1736, 12262), (3472, 6131)]