20990034

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{331}}^1$

素因数の和:623

約数の個数: 48

約数和(自身を含む): 49305984

約数和(自身を除く): 28315950

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 271, 331, 542, 662, 813, 993, 1626, 1986, 2439, 2979, 3523, 4303, 4878, 5958, 7046, 8606, 10569, 12909, 21138, 25818, 31707, 38727, 63414, 77454, 89701, 179402, 269103, 538206, 807309, 1166113, 1614618, 2332226, 3498339, 6996678, 10495017, 20990034]

約数ペア:

[(1, 20990034), (2, 10495017), (3, 6996678), (6, 3498339), (9, 2332226), (13, 1614618), (18, 1166113), (26, 807309), (39, 538206), (78, 269103), (117, 179402), (234, 89701), (271, 77454), (331, 63414), (542, 38727), (662, 31707), (813, 25818), (993, 21138), (1626, 12909), (1986, 10569), (2439, 8606), (2979, 7046), (3523, 5958), (4303, 4878)]