21948530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 44416512

約数和(自身を除く): 22467982

約数列:

[1, 2, 5, 10, 17, 34, 41, 47, 67, 82, 85, 94, 134, 170, 205, 235, 335, 410, 470, 670, 697, 799, 1139, 1394, 1598, 1927, 2278, 2747, 3149, 3485, 3854, 3995, 5494, 5695, 6298, 6970, 7990, 9635, 11390, 13735, 15745, 19270, 27470, 31490, 32759, 46699, 53533, 65518, 93398, 107066, 129109, 163795, 233495, 258218, 267665, 327590, 466990, 535330, 645545, 1291090, 2194853, 4389706, 10974265, 21948530]

約数ペア:

[(1, 21948530), (2, 10974265), (5, 4389706), (10, 2194853), (17, 1291090), (34, 645545), (41, 535330), (47, 466990), (67, 327590), (82, 267665), (85, 258218), (94, 233495), (134, 163795), (170, 129109), (205, 107066), (235, 93398), (335, 65518), (410, 53533), (470, 46699), (670, 32759), (697, 31490), (799, 27470), (1139, 19270), (1394, 15745), (1598, 13735), (1927, 11390), (2278, 9635), (2747, 7990), (3149, 6970), (3485, 6298), (3854, 5695), (3995, 5494)]