21165996

素因数分解:

$2^2\times 3^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 29637204

約数列:

[1, 2, 3, 4, 6, 12, 79, 83, 158, 166, 237, 249, 269, 316, 332, 474, 498, 538, 807, 948, 996, 1076, 1614, 3228, 6557, 13114, 19671, 21251, 22327, 26228, 39342, 42502, 44654, 63753, 66981, 78684, 85004, 89308, 127506, 133962, 255012, 267924, 1763833, 3527666, 5291499, 7055332, 10582998, 21165996]

約数ペア:

[(1, 21165996), (2, 10582998), (3, 7055332), (4, 5291499), (6, 3527666), (12, 1763833), (79, 267924), (83, 255012), (158, 133962), (166, 127506), (237, 89308), (249, 85004), (269, 78684), (316, 66981), (332, 63753), (474, 44654), (498, 42502), (538, 39342), (807, 26228), (948, 22327), (996, 21251), (1076, 19671), (1614, 13114), (3228, 6557)]