201972407

素因数分解:

$7^1\times {\mathrm{13}}^3\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 261381120

約数和(自身を除く): 59408713

約数列:

[1, 7, 13, 23, 91, 161, 169, 299, 571, 1183, 2093, 2197, 3887, 3997, 7423, 13133, 15379, 27209, 50531, 51961, 91931, 96499, 170729, 353717, 675493, 1195103, 1254487, 2219477, 8781409, 15536339, 28853201, 201972407]

約数ペア:

[(1, 201972407), (7, 28853201), (13, 15536339), (23, 8781409), (91, 2219477), (161, 1254487), (169, 1195103), (299, 675493), (571, 353717), (1183, 170729), (2093, 96499), (2197, 91931), (3887, 51961), (3997, 50531), (7423, 27209), (13133, 15379)]