21912954

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 52531200

約数和(自身を除く): 30618246

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 59, 74, 111, 118, 177, 222, 239, 259, 354, 413, 478, 518, 717, 777, 826, 1239, 1434, 1554, 1673, 2183, 2478, 3346, 4366, 5019, 6549, 8843, 10038, 13098, 14101, 15281, 17686, 26529, 28202, 30562, 42303, 45843, 53058, 61901, 84606, 91686, 98707, 123802, 185703, 197414, 296121, 371406, 521737, 592242, 1043474, 1565211, 3130422, 3652159, 7304318, 10956477, 21912954]

約数ペア:

[(1, 21912954), (2, 10956477), (3, 7304318), (6, 3652159), (7, 3130422), (14, 1565211), (21, 1043474), (37, 592242), (42, 521737), (59, 371406), (74, 296121), (111, 197414), (118, 185703), (177, 123802), (222, 98707), (239, 91686), (259, 84606), (354, 61901), (413, 53058), (478, 45843), (518, 42303), (717, 30562), (777, 28202), (826, 26529), (1239, 17686), (1434, 15281), (1554, 14101), (1673, 13098), (2183, 10038), (2478, 8843), (3346, 6549), (4366, 5019)]