20458536

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2591}}^1$

素因数の和:2654

約数の個数: 64

約数和(自身を含む): 59719680

約数和(自身を除く): 39261144

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 47, 56, 84, 94, 141, 168, 188, 282, 329, 376, 564, 658, 987, 1128, 1316, 1974, 2591, 2632, 3948, 5182, 7773, 7896, 10364, 15546, 18137, 20728, 31092, 36274, 54411, 62184, 72548, 108822, 121777, 145096, 217644, 243554, 365331, 435288, 487108, 730662, 852439, 974216, 1461324, 1704878, 2557317, 2922648, 3409756, 5114634, 6819512, 10229268, 20458536]

約数ペア:

[(1, 20458536), (2, 10229268), (3, 6819512), (4, 5114634), (6, 3409756), (7, 2922648), (8, 2557317), (12, 1704878), (14, 1461324), (21, 974216), (24, 852439), (28, 730662), (42, 487108), (47, 435288), (56, 365331), (84, 243554), (94, 217644), (141, 145096), (168, 121777), (188, 108822), (282, 72548), (329, 62184), (376, 54411), (564, 36274), (658, 31092), (987, 20728), (1128, 18137), (1316, 15546), (1974, 10364), (2591, 7896), (2632, 7773), (3948, 5182)]