21000508816

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11029679}}^1$

素因数の和:11029711

約数の個数: 40

約数和(自身を含む): 49236491520

約数和(自身を除く): 28235982704

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11029679, 22059358, 44118716, 77207753, 88237432, 154415506, 176474864, 187504543, 308831012, 375009086, 617662024, 750018172, 1235324048, 1312531801, 1500036344, 2625063602, 3000072688, 5250127204, 10500254408, 21000508816]

約数ペア:

[(1, 21000508816), (2, 10500254408), (4, 5250127204), (7, 3000072688), (8, 2625063602), (14, 1500036344), (16, 1312531801), (17, 1235324048), (28, 750018172), (34, 617662024), (56, 375009086), (68, 308831012), (112, 187504543), (119, 176474864), (136, 154415506), (238, 88237432), (272, 77207753), (476, 44118716), (952, 22059358), (1904, 11029679)]