18810738

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 45757440

約数和(自身を除く): 26946702

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 31, 34, 51, 54, 62, 93, 102, 153, 186, 279, 306, 459, 527, 558, 661, 837, 918, 1054, 1322, 1581, 1674, 1983, 3162, 3966, 4743, 5949, 9486, 11237, 11898, 14229, 17847, 20491, 22474, 28458, 33711, 35694, 40982, 61473, 67422, 101133, 122946, 184419, 202266, 303399, 348347, 368838, 553257, 606798, 696694, 1045041, 1106514, 2090082, 3135123, 6270246, 9405369, 18810738]

約数ペア:

[(1, 18810738), (2, 9405369), (3, 6270246), (6, 3135123), (9, 2090082), (17, 1106514), (18, 1045041), (27, 696694), (31, 606798), (34, 553257), (51, 368838), (54, 348347), (62, 303399), (93, 202266), (102, 184419), (153, 122946), (186, 101133), (279, 67422), (306, 61473), (459, 40982), (527, 35694), (558, 33711), (661, 28458), (837, 22474), (918, 20491), (1054, 17847), (1322, 14229), (1581, 11898), (1674, 11237), (1983, 9486), (3162, 5949), (3966, 4743)]