21934980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3931}}^1$

素因数の和:3977

約数の個数: 72

約数和(自身を含む): 68699904

約数和(自身を除く): 46764924

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, 3931, 5580, 7862, 11793, 15724, 19655, 23586, 35379, 39310, 47172, 58965, 70758, 78620, 117930, 121861, 141516, 176895, 235860, 243722, 353790, 365583, 487444, 609305, 707580, 731166, 1096749, 1218610, 1462332, 1827915, 2193498, 2437220, 3655830, 4386996, 5483745, 7311660, 10967490, 21934980]

約数ペア:

[(1, 21934980), (2, 10967490), (3, 7311660), (4, 5483745), (5, 4386996), (6, 3655830), (9, 2437220), (10, 2193498), (12, 1827915), (15, 1462332), (18, 1218610), (20, 1096749), (30, 731166), (31, 707580), (36, 609305), (45, 487444), (60, 365583), (62, 353790), (90, 243722), (93, 235860), (124, 176895), (155, 141516), (180, 121861), (186, 117930), (279, 78620), (310, 70758), (372, 58965), (465, 47172), (558, 39310), (620, 35379), (930, 23586), (1116, 19655), (1395, 15724), (1860, 11793), (2790, 7862), (3931, 5580)]