21474366921

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1646681}}^1$

素因数の和:1646723

約数の個数: 40

約数和(自身を含む): 38255716224

約数和(自身を除く): 16781349303

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1863, 4347, 13041, 1646681, 4940043, 11526767, 14820129, 34580301, 37873663, 44460387, 103740903, 113620989, 133381161, 265115641, 311222709, 340862967, 795346923, 933668127, 1022588901, 2386040769, 3067766703, 7158122307, 21474366921]

約数ペア:

[(1, 21474366921), (3, 7158122307), (7, 3067766703), (9, 2386040769), (21, 1022588901), (23, 933668127), (27, 795346923), (63, 340862967), (69, 311222709), (81, 265115641), (161, 133381161), (189, 113620989), (207, 103740903), (483, 44460387), (567, 37873663), (621, 34580301), (1449, 14820129), (1863, 11526767), (4347, 4940043), (13041, 1646681)]