55780221

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2179}}^1$

素因数の和:2265

約数の個数: 32

約数和(自身を含む): 90408960

約数和(自身を除く): 34628739

約数列:

[1, 3, 7, 21, 23, 53, 69, 159, 161, 371, 483, 1113, 1219, 2179, 3657, 6537, 8533, 15253, 25599, 45759, 50117, 115487, 150351, 346461, 350819, 808409, 1052457, 2425227, 2656201, 7968603, 18593407, 55780221]

約数ペア:

[(1, 55780221), (3, 18593407), (7, 7968603), (21, 2656201), (23, 2425227), (53, 1052457), (69, 808409), (159, 350819), (161, 346461), (371, 150351), (483, 115487), (1113, 50117), (1219, 45759), (2179, 25599), (3657, 15253), (6537, 8533)]