20985636

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8059}}^1$

素因数の和:8104

約数の個数: 48

約数和(自身を含む): 57774080

約数和(自身を除く): 36788444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 372, 434, 651, 868, 1302, 2604, 8059, 16118, 24177, 32236, 48354, 56413, 96708, 112826, 169239, 225652, 249829, 338478, 499658, 676956, 749487, 999316, 1498974, 1748803, 2997948, 3497606, 5246409, 6995212, 10492818, 20985636]

約数ペア:

[(1, 20985636), (2, 10492818), (3, 6995212), (4, 5246409), (6, 3497606), (7, 2997948), (12, 1748803), (14, 1498974), (21, 999316), (28, 749487), (31, 676956), (42, 499658), (62, 338478), (84, 249829), (93, 225652), (124, 169239), (186, 112826), (217, 96708), (372, 56413), (434, 48354), (651, 32236), (868, 24177), (1302, 16118), (2604, 8059)]