21350790

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:675

約数の個数: 80

約数和(自身を含む): 58840848

約数和(自身を除く): 37490058

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 81, 86, 90, 129, 135, 162, 215, 258, 270, 387, 405, 430, 613, 645, 774, 810, 1161, 1226, 1290, 1839, 1935, 2322, 3065, 3483, 3678, 3870, 5517, 5805, 6130, 6966, 9195, 11034, 11610, 16551, 17415, 18390, 26359, 27585, 33102, 34830, 49653, 52718, 55170, 79077, 82755, 99306, 131795, 158154, 165510, 237231, 248265, 263590, 395385, 474462, 496530, 711693, 790770, 1186155, 1423386, 2135079, 2372310, 3558465, 4270158, 7116930, 10675395, 21350790]

約数ペア:

[(1, 21350790), (2, 10675395), (3, 7116930), (5, 4270158), (6, 3558465), (9, 2372310), (10, 2135079), (15, 1423386), (18, 1186155), (27, 790770), (30, 711693), (43, 496530), (45, 474462), (54, 395385), (81, 263590), (86, 248265), (90, 237231), (129, 165510), (135, 158154), (162, 131795), (215, 99306), (258, 82755), (270, 79077), (387, 55170), (405, 52718), (430, 49653), (613, 34830), (645, 33102), (774, 27585), (810, 26359), (1161, 18390), (1226, 17415), (1290, 16551), (1839, 11610), (1935, 11034), (2322, 9195), (3065, 6966), (3483, 6130), (3678, 5805), (3870, 5517)]