21490110

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{617}}^1$

素因数の和:679

約数の個数: 80

約数和(自身を含む): 59224176

約数和(自身を除く): 37734066

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, 617, 645, 774, 810, 1161, 1234, 1290, 1851, 1935, 2322, 3085, 3483, 3702, 3870, 5553, 5805, 6170, 6966, 9255, 11106, 11610, 16659, 17415, 18510, 26531, 27765, 33318, 34830, 49977, 53062, 55530, 79593, 83295, 99954, 132655, 159186, 166590, 238779, 249885, 265310, 397965, 477558, 499770, 716337, 795930, 1193895, 1432674, 2149011, 2387790, 3581685, 4298022, 7163370, 10745055, 21490110]

約数ペア:

[(1, 21490110), (2, 10745055), (3, 7163370), (5, 4298022), (6, 3581685), (9, 2387790), (10, 2149011), (15, 1432674), (18, 1193895), (27, 795930), (30, 716337), (43, 499770), (45, 477558), (54, 397965), (81, 265310), (86, 249885), (90, 238779), (129, 166590), (135, 159186), (162, 132655), (215, 99954), (258, 83295), (270, 79593), (387, 55530), (405, 53062), (430, 49977), (617, 34830), (645, 33318), (774, 27765), (810, 26531), (1161, 18510), (1234, 17415), (1290, 16659), (1851, 11610), (1935, 11106), (2322, 9255), (3085, 6966), (3483, 6170), (3702, 5805), (3870, 5553)]