21543796

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1103}}^1$

素因数の和:1383

約数の個数: 24

約数和(自身を含む): 39876480

約数和(自身を除く): 18332684

約数列:

[1, 2, 4, 19, 38, 76, 257, 514, 1028, 1103, 2206, 4412, 4883, 9766, 19532, 20957, 41914, 83828, 283471, 566942, 1133884, 5385949, 10771898, 21543796]

約数ペア:

[(1, 21543796), (2, 10771898), (4, 5385949), (19, 1133884), (38, 566942), (76, 283471), (257, 83828), (514, 41914), (1028, 20957), (1103, 19532), (2206, 9766), (4412, 4883)]