21946365

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:331

約数の個数: 72

約数和(自身を含む): 45615960

約数和(自身を除く): 23669595

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 49, 63, 105, 111, 147, 185, 245, 259, 269, 315, 333, 441, 555, 735, 777, 807, 1295, 1345, 1665, 1813, 1883, 2205, 2331, 2421, 3885, 4035, 5439, 5649, 9065, 9415, 9953, 11655, 12105, 13181, 16317, 16947, 27195, 28245, 29859, 39543, 49765, 65905, 69671, 81585, 84735, 89577, 118629, 149295, 197715, 209013, 348355, 447885, 487697, 593145, 627039, 1045065, 1463091, 2438485, 3135195, 4389273, 7315455, 21946365]

約数ペア:

[(1, 21946365), (3, 7315455), (5, 4389273), (7, 3135195), (9, 2438485), (15, 1463091), (21, 1045065), (35, 627039), (37, 593145), (45, 487697), (49, 447885), (63, 348355), (105, 209013), (111, 197715), (147, 149295), (185, 118629), (245, 89577), (259, 84735), (269, 81585), (315, 69671), (333, 65905), (441, 49765), (555, 39543), (735, 29859), (777, 28245), (807, 27195), (1295, 16947), (1345, 16317), (1665, 13181), (1813, 12105), (1883, 11655), (2205, 9953), (2331, 9415), (2421, 9065), (3885, 5649), (4035, 5439)]