21669930

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:913

約数の個数: 80

約数和(自身を含む): 60217344

約数和(自身を除く): 38547414

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 81, 90, 93, 135, 155, 162, 186, 270, 279, 310, 405, 465, 558, 810, 837, 863, 930, 1395, 1674, 1726, 2511, 2589, 2790, 4185, 4315, 5022, 5178, 7767, 8370, 8630, 12555, 12945, 15534, 23301, 25110, 25890, 26753, 38835, 46602, 53506, 69903, 77670, 80259, 116505, 133765, 139806, 160518, 233010, 240777, 267530, 349515, 401295, 481554, 699030, 722331, 802590, 1203885, 1444662, 2166993, 2407770, 3611655, 4333986, 7223310, 10834965, 21669930]

約数ペア:

[(1, 21669930), (2, 10834965), (3, 7223310), (5, 4333986), (6, 3611655), (9, 2407770), (10, 2166993), (15, 1444662), (18, 1203885), (27, 802590), (30, 722331), (31, 699030), (45, 481554), (54, 401295), (62, 349515), (81, 267530), (90, 240777), (93, 233010), (135, 160518), (155, 139806), (162, 133765), (186, 116505), (270, 80259), (279, 77670), (310, 69903), (405, 53506), (465, 46602), (558, 38835), (810, 26753), (837, 25890), (863, 25110), (930, 23301), (1395, 15534), (1674, 12945), (1726, 12555), (2511, 8630), (2589, 8370), (2790, 7767), (4185, 5178), (4315, 5022)]