21903986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 36590400

約数和(自身を除く): 14686414

約数列:

[1, 2, 13, 26, 59, 109, 118, 131, 218, 262, 767, 1417, 1534, 1703, 2834, 3406, 6431, 7729, 12862, 14279, 15458, 28558, 83603, 100477, 167206, 185627, 200954, 371254, 842461, 1684922, 10951993, 21903986]

約数ペア:

[(1, 21903986), (2, 10951993), (13, 1684922), (26, 842461), (59, 371254), (109, 200954), (118, 185627), (131, 167206), (218, 100477), (262, 83603), (767, 28558), (1417, 15458), (1534, 14279), (1703, 12862), (2834, 7729), (3406, 6431)]