21577010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 48432384

約数和(自身を除く): 26855374

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 131, 181, 182, 262, 362, 455, 655, 905, 910, 917, 1267, 1310, 1703, 1810, 1834, 2353, 2534, 3406, 4585, 4706, 6335, 8515, 9170, 11765, 11921, 12670, 16471, 17030, 23530, 23711, 23842, 32942, 47422, 59605, 82355, 118555, 119210, 164710, 165977, 237110, 308243, 331954, 616486, 829885, 1541215, 1659770, 2157701, 3082430, 4315402, 10788505, 21577010]

約数ペア:

[(1, 21577010), (2, 10788505), (5, 4315402), (7, 3082430), (10, 2157701), (13, 1659770), (14, 1541215), (26, 829885), (35, 616486), (65, 331954), (70, 308243), (91, 237110), (130, 165977), (131, 164710), (181, 119210), (182, 118555), (262, 82355), (362, 59605), (455, 47422), (655, 32942), (905, 23842), (910, 23711), (917, 23530), (1267, 17030), (1310, 16471), (1703, 12670), (1810, 11921), (1834, 11765), (2353, 9170), (2534, 8515), (3406, 6335), (4585, 4706)]