18390974

素因数分解:

$2^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:142

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 17897026

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 49, 83, 98, 119, 133, 166, 238, 266, 323, 343, 581, 646, 686, 833, 931, 1162, 1411, 1577, 1666, 1862, 2261, 2822, 3154, 4067, 4522, 5831, 6517, 8134, 9877, 11039, 11662, 13034, 15827, 19754, 22078, 26809, 28469, 31654, 53618, 56938, 69139, 77273, 110789, 138278, 154546, 187663, 221578, 375326, 483973, 540911, 967946, 1081822, 1313641, 2627282, 9195487, 18390974]

約数ペア:

[(1, 18390974), (2, 9195487), (7, 2627282), (14, 1313641), (17, 1081822), (19, 967946), (34, 540911), (38, 483973), (49, 375326), (83, 221578), (98, 187663), (119, 154546), (133, 138278), (166, 110789), (238, 77273), (266, 69139), (323, 56938), (343, 53618), (581, 31654), (646, 28469), (686, 26809), (833, 22078), (931, 19754), (1162, 15827), (1411, 13034), (1577, 11662), (1666, 11039), (1862, 9877), (2261, 8134), (2822, 6517), (3154, 5831), (4067, 4522)]