21155630

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1559}}^1$

素因数の和:1648

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 19279570

約数列:

[1, 2, 5, 10, 23, 46, 59, 115, 118, 230, 295, 590, 1357, 1559, 2714, 3118, 6785, 7795, 13570, 15590, 35857, 71714, 91981, 179285, 183962, 358570, 459905, 919810, 2115563, 4231126, 10577815, 21155630]

約数ペア:

[(1, 21155630), (2, 10577815), (5, 4231126), (10, 2115563), (23, 919810), (46, 459905), (59, 358570), (115, 183962), (118, 179285), (230, 91981), (295, 71714), (590, 35857), (1357, 15590), (1559, 13570), (2714, 7795), (3118, 6785)]