18702908

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2579}}^1$

素因数の和:2634

約数の個数: 36

約数和(自身を含む): 39117960

約数和(自身を除く): 20415052

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 518, 1036, 1813, 2579, 3626, 5158, 7252, 10316, 18053, 36106, 72212, 95423, 126371, 190846, 252742, 381692, 505484, 667961, 1335922, 2671844, 4675727, 9351454, 18702908]

約数ペア:

[(1, 18702908), (2, 9351454), (4, 4675727), (7, 2671844), (14, 1335922), (28, 667961), (37, 505484), (49, 381692), (74, 252742), (98, 190846), (148, 126371), (196, 95423), (259, 72212), (518, 36106), (1036, 18053), (1813, 10316), (2579, 7252), (3626, 5158)]