21230970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{617}}^1$

素因数の和:695

約数の個数: 64

約数和(自身を含む): 54107136

約数和(自身を除く): 32876166

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 37, 62, 74, 93, 111, 155, 185, 186, 222, 310, 370, 465, 555, 617, 930, 1110, 1147, 1234, 1851, 2294, 3085, 3441, 3702, 5735, 6170, 6882, 9255, 11470, 17205, 18510, 19127, 22829, 34410, 38254, 45658, 57381, 68487, 95635, 114145, 114762, 136974, 191270, 228290, 286905, 342435, 573810, 684870, 707699, 1415398, 2123097, 3538495, 4246194, 7076990, 10615485, 21230970]

約数ペア:

[(1, 21230970), (2, 10615485), (3, 7076990), (5, 4246194), (6, 3538495), (10, 2123097), (15, 1415398), (30, 707699), (31, 684870), (37, 573810), (62, 342435), (74, 286905), (93, 228290), (111, 191270), (155, 136974), (185, 114762), (186, 114145), (222, 95635), (310, 68487), (370, 57381), (465, 45658), (555, 38254), (617, 34410), (930, 22829), (1110, 19127), (1147, 18510), (1234, 17205), (1851, 11470), (2294, 9255), (3085, 6882), (3441, 6170), (3702, 5735)]