21624786

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 50265600

約数和(自身を除く): 28640814

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 67, 86, 129, 134, 139, 201, 258, 278, 387, 402, 417, 603, 774, 834, 1161, 1206, 1251, 1809, 2322, 2502, 2881, 3618, 3753, 5762, 5977, 7506, 8643, 9313, 11954, 17286, 17931, 18626, 25929, 27939, 35862, 51858, 53793, 55878, 77787, 83817, 107586, 155574, 161379, 167634, 251451, 322758, 400459, 502902, 800918, 1201377, 2402754, 3604131, 7208262, 10812393, 21624786]

約数ペア:

[(1, 21624786), (2, 10812393), (3, 7208262), (6, 3604131), (9, 2402754), (18, 1201377), (27, 800918), (43, 502902), (54, 400459), (67, 322758), (86, 251451), (129, 167634), (134, 161379), (139, 155574), (201, 107586), (258, 83817), (278, 77787), (387, 55878), (402, 53793), (417, 51858), (603, 35862), (774, 27939), (834, 25929), (1161, 18626), (1206, 17931), (1251, 17286), (1809, 11954), (2322, 9313), (2502, 8643), (2881, 7506), (3618, 5977), (3753, 5762)]