21175380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2503}}^1$

素因数の和:2565

約数の個数: 72

約数和(自身を含む): 65624832

約数和(自身を除く): 44449452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2503, 2820, 4230, 5006, 7509, 8460, 10012, 12515, 15018, 22527, 25030, 30036, 37545, 45054, 50060, 75090, 90108, 112635, 117641, 150180, 225270, 235282, 352923, 450540, 470564, 588205, 705846, 1058769, 1176410, 1411692, 1764615, 2117538, 2352820, 3529230, 4235076, 5293845, 7058460, 10587690, 21175380]

約数ペア:

[(1, 21175380), (2, 10587690), (3, 7058460), (4, 5293845), (5, 4235076), (6, 3529230), (9, 2352820), (10, 2117538), (12, 1764615), (15, 1411692), (18, 1176410), (20, 1058769), (30, 705846), (36, 588205), (45, 470564), (47, 450540), (60, 352923), (90, 235282), (94, 225270), (141, 150180), (180, 117641), (188, 112635), (235, 90108), (282, 75090), (423, 50060), (470, 45054), (564, 37545), (705, 30036), (846, 25030), (940, 22527), (1410, 15018), (1692, 12515), (2115, 10012), (2503, 8460), (2820, 7509), (4230, 5006)]