21996372268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1\times {\mathrm{32063}}^1$

素因数の和:32326

約数の個数: 48

約数和(自身を含む): 42232135680

約数和(自身を除く): 20235763412

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 167, 316, 334, 668, 1027, 2054, 2171, 4108, 4342, 8684, 13193, 26386, 32063, 52772, 64126, 128252, 171509, 343018, 416819, 686036, 833638, 1667276, 2532977, 5065954, 5354521, 10131908, 10709042, 21418084, 32928701, 65857402, 69608773, 131714804, 139217546, 278435092, 423007159, 846014318, 1692028636, 5499093067, 10998186134, 21996372268]

約数ペア:

[(1, 21996372268), (2, 10998186134), (4, 5499093067), (13, 1692028636), (26, 846014318), (52, 423007159), (79, 278435092), (158, 139217546), (167, 131714804), (316, 69608773), (334, 65857402), (668, 32928701), (1027, 21418084), (2054, 10709042), (2171, 10131908), (4108, 5354521), (4342, 5065954), (8684, 2532977), (13193, 1667276), (26386, 833638), (32063, 686036), (52772, 416819), (64126, 343018), (128252, 171509)]