18961956

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1307}}^1$

素因数の和:1361

約数の個数: 72

約数和(自身を含む): 53324544

約数和(自身を除く): 34362588

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1307, 1612, 2418, 2614, 3627, 3921, 4836, 5228, 7254, 7842, 11763, 14508, 15684, 16991, 23526, 33982, 40517, 47052, 50973, 67964, 81034, 101946, 121551, 152919, 162068, 203892, 243102, 305838, 364653, 486204, 526721, 611676, 729306, 1053442, 1458612, 1580163, 2106884, 3160326, 4740489, 6320652, 9480978, 18961956]

約数ペア:

[(1, 18961956), (2, 9480978), (3, 6320652), (4, 4740489), (6, 3160326), (9, 2106884), (12, 1580163), (13, 1458612), (18, 1053442), (26, 729306), (31, 611676), (36, 526721), (39, 486204), (52, 364653), (62, 305838), (78, 243102), (93, 203892), (117, 162068), (124, 152919), (156, 121551), (186, 101946), (234, 81034), (279, 67964), (372, 50973), (403, 47052), (468, 40517), (558, 33982), (806, 23526), (1116, 16991), (1209, 15684), (1307, 14508), (1612, 11763), (2418, 7842), (2614, 7254), (3627, 5228), (3921, 4836)]