18343689

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 31792320

約数和(自身を除く): 13448631

約数列:

[1, 3, 7, 13, 21, 29, 39, 49, 87, 91, 147, 203, 273, 331, 377, 609, 637, 993, 1131, 1421, 1911, 2317, 2639, 4263, 4303, 6951, 7917, 9599, 12909, 16219, 18473, 28797, 30121, 48657, 55419, 67193, 90363, 124787, 201579, 210847, 374361, 470351, 632541, 873509, 1411053, 2620527, 6114563, 18343689]

約数ペア:

[(1, 18343689), (3, 6114563), (7, 2620527), (13, 1411053), (21, 873509), (29, 632541), (39, 470351), (49, 374361), (87, 210847), (91, 201579), (147, 124787), (203, 90363), (273, 67193), (331, 55419), (377, 48657), (609, 30121), (637, 28797), (993, 18473), (1131, 16219), (1421, 12909), (1911, 9599), (2317, 7917), (2639, 6951), (4263, 4303)]