645918

素因数分解:

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

素因数の和:58

約数の個数: 48

約数和(自身を含む): 1627920

約数和(自身を除く): 982002

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 169, 182, 273, 294, 338, 507, 546, 637, 1014, 1183, 1274, 1911, 2197, 2366, 3549, 3822, 4394, 6591, 7098, 8281, 13182, 15379, 16562, 24843, 30758, 46137, 49686, 92274, 107653, 215306, 322959, 645918]

約数ペア:

[(1, 645918), (2, 322959), (3, 215306), (6, 107653), (7, 92274), (13, 49686), (14, 46137), (21, 30758), (26, 24843), (39, 16562), (42, 15379), (49, 13182), (78, 8281), (91, 7098), (98, 6591), (147, 4394), (169, 3822), (182, 3549), (273, 2366), (294, 2197), (338, 1911), (507, 1274), (546, 1183), (637, 1014)]