21823380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3911}}^1$

素因数の和:3957

約数の個数: 72

約数和(自身を含む): 68350464

約数和(自身を除く): 46527084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3911, 5580, 7822, 11733, 15644, 19555, 23466, 35199, 39110, 46932, 58665, 70398, 78220, 117330, 121241, 140796, 175995, 234660, 242482, 351990, 363723, 484964, 606205, 703980, 727446, 1091169, 1212410, 1454892, 1818615, 2182338, 2424820, 3637230, 4364676, 5455845, 7274460, 10911690, 21823380]

約数ペア:

[(1, 21823380), (2, 10911690), (3, 7274460), (4, 5455845), (5, 4364676), (6, 3637230), (9, 2424820), (10, 2182338), (12, 1818615), (15, 1454892), (18, 1212410), (20, 1091169), (30, 727446), (31, 703980), (36, 606205), (45, 484964), (60, 363723), (62, 351990), (90, 242482), (93, 234660), (124, 175995), (155, 140796), (180, 121241), (186, 117330), (279, 78220), (310, 70398), (372, 58665), (465, 46932), (558, 39110), (620, 35199), (930, 23466), (1116, 19555), (1395, 15644), (1860, 11733), (2790, 7822), (3911, 5580)]