21867760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:226

約数の個数: 80

約数和(自身を含む): 53434080

約数和(自身を除く): 31566320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 59, 80, 82, 113, 118, 164, 205, 226, 236, 295, 328, 410, 452, 472, 565, 590, 656, 820, 904, 944, 1130, 1180, 1640, 1808, 2260, 2360, 2419, 3280, 4520, 4633, 4720, 4838, 6667, 9040, 9266, 9676, 12095, 13334, 18532, 19352, 23165, 24190, 26668, 33335, 37064, 38704, 46330, 48380, 53336, 66670, 74128, 92660, 96760, 106672, 133340, 185320, 193520, 266680, 273347, 370640, 533360, 546694, 1093388, 1366735, 2186776, 2733470, 4373552, 5466940, 10933880, 21867760]

約数ペア:

[(1, 21867760), (2, 10933880), (4, 5466940), (5, 4373552), (8, 2733470), (10, 2186776), (16, 1366735), (20, 1093388), (40, 546694), (41, 533360), (59, 370640), (80, 273347), (82, 266680), (113, 193520), (118, 185320), (164, 133340), (205, 106672), (226, 96760), (236, 92660), (295, 74128), (328, 66670), (410, 53336), (452, 48380), (472, 46330), (565, 38704), (590, 37064), (656, 33335), (820, 26668), (904, 24190), (944, 23165), (1130, 19352), (1180, 18532), (1640, 13334), (1808, 12095), (2260, 9676), (2360, 9266), (2419, 9040), (3280, 6667), (4520, 4838), (4633, 4720)]