31141215

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 65089440

約数和(自身を除く): 33948225

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 49, 63, 87, 105, 145, 147, 203, 245, 261, 315, 435, 441, 487, 609, 735, 1015, 1305, 1421, 1461, 1827, 2205, 2435, 3045, 3409, 4263, 4383, 7105, 7305, 9135, 10227, 12789, 14123, 17045, 21315, 21915, 23863, 30681, 42369, 51135, 63945, 70615, 71589, 98861, 119315, 127107, 153405, 211845, 214767, 296583, 357945, 494305, 635535, 692027, 889749, 1073835, 1482915, 2076081, 3460135, 4448745, 6228243, 10380405, 31141215]

約数ペア:

[(1, 31141215), (3, 10380405), (5, 6228243), (7, 4448745), (9, 3460135), (15, 2076081), (21, 1482915), (29, 1073835), (35, 889749), (45, 692027), (49, 635535), (63, 494305), (87, 357945), (105, 296583), (145, 214767), (147, 211845), (203, 153405), (245, 127107), (261, 119315), (315, 98861), (435, 71589), (441, 70615), (487, 63945), (609, 51135), (735, 42369), (1015, 30681), (1305, 23863), (1421, 21915), (1461, 21315), (1827, 17045), (2205, 14123), (2435, 12789), (3045, 10227), (3409, 9135), (4263, 7305), (4383, 7105)]