221435201

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 255897600

約数和(自身を除く): 34462399

約数列:

[1, 13, 31, 59, 67, 139, 403, 767, 871, 1807, 1829, 2077, 3953, 4309, 8201, 9313, 23777, 27001, 51389, 56017, 106613, 121069, 122543, 254231, 288703, 549467, 1593059, 3305003, 3753139, 7143071, 17033477, 221435201]

約数ペア:

[(1, 221435201), (13, 17033477), (31, 7143071), (59, 3753139), (67, 3305003), (139, 1593059), (403, 549467), (767, 288703), (871, 254231), (1807, 122543), (1829, 121069), (2077, 106613), (3953, 56017), (4309, 51389), (8201, 27001), (9313, 23777)]