20862044

素因数分解:

$2^2\times 7^2\times {\mathrm{163}}^1\times {\mathrm{653}}^1$

素因数の和:834

約数の個数: 36

約数和(自身を含む): 42795144

約数和(自身を除く): 21933100

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 163, 196, 326, 652, 653, 1141, 1306, 2282, 2612, 4564, 4571, 7987, 9142, 15974, 18284, 31948, 31997, 63994, 106439, 127988, 212878, 425756, 745073, 1490146, 2980292, 5215511, 10431022, 20862044]

約数ペア:

[(1, 20862044), (2, 10431022), (4, 5215511), (7, 2980292), (14, 1490146), (28, 745073), (49, 425756), (98, 212878), (163, 127988), (196, 106439), (326, 63994), (652, 31997), (653, 31948), (1141, 18284), (1306, 15974), (2282, 9142), (2612, 7987), (4564, 4571)]