19218822

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:581

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 27782778

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 31, 42, 58, 62, 87, 93, 174, 186, 203, 217, 406, 434, 509, 609, 651, 899, 1018, 1218, 1302, 1527, 1798, 2697, 3054, 3563, 5394, 6293, 7126, 10689, 12586, 14761, 15779, 18879, 21378, 29522, 31558, 37758, 44283, 47337, 88566, 94674, 103327, 110453, 206654, 220906, 309981, 331359, 457591, 619962, 662718, 915182, 1372773, 2745546, 3203137, 6406274, 9609411, 19218822]

約数ペア:

[(1, 19218822), (2, 9609411), (3, 6406274), (6, 3203137), (7, 2745546), (14, 1372773), (21, 915182), (29, 662718), (31, 619962), (42, 457591), (58, 331359), (62, 309981), (87, 220906), (93, 206654), (174, 110453), (186, 103327), (203, 94674), (217, 88566), (406, 47337), (434, 44283), (509, 37758), (609, 31558), (651, 29522), (899, 21378), (1018, 18879), (1218, 15779), (1302, 14761), (1527, 12586), (1798, 10689), (2697, 7126), (3054, 6293), (3563, 5394)]