21014553

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12163047

約数列:

[1, 3, 7, 21, 53, 79, 159, 237, 239, 371, 553, 717, 1113, 1659, 1673, 4187, 5019, 12561, 12667, 18881, 29309, 38001, 56643, 87927, 88669, 132167, 266007, 396501, 1000693, 3002079, 7004851, 21014553]

約数ペア:

[(1, 21014553), (3, 7004851), (7, 3002079), (21, 1000693), (53, 396501), (79, 266007), (159, 132167), (237, 88669), (239, 87927), (371, 56643), (553, 38001), (717, 29309), (1113, 18881), (1659, 12667), (1673, 12561), (4187, 5019)]