21826260

素因数分解:

$2^2\times 3^7\times 5^1\times {\mathrm{499}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 68880000

約数和(自身を除く): 47053740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 499, 540, 729, 810, 972, 998, 1215, 1458, 1497, 1620, 1996, 2187, 2430, 2495, 2916, 2994, 3645, 4374, 4491, 4860, 4990, 5988, 7290, 7485, 8748, 8982, 9980, 10935, 13473, 14580, 14970, 17964, 21870, 22455, 26946, 29940, 40419, 43740, 44910, 53892, 67365, 80838, 89820, 121257, 134730, 161676, 202095, 242514, 269460, 363771, 404190, 485028, 606285, 727542, 808380, 1091313, 1212570, 1455084, 1818855, 2182626, 2425140, 3637710, 4365252, 5456565, 7275420, 10913130, 21826260]

約数ペア:

[(1, 21826260), (2, 10913130), (3, 7275420), (4, 5456565), (5, 4365252), (6, 3637710), (9, 2425140), (10, 2182626), (12, 1818855), (15, 1455084), (18, 1212570), (20, 1091313), (27, 808380), (30, 727542), (36, 606285), (45, 485028), (54, 404190), (60, 363771), (81, 269460), (90, 242514), (108, 202095), (135, 161676), (162, 134730), (180, 121257), (243, 89820), (270, 80838), (324, 67365), (405, 53892), (486, 44910), (499, 43740), (540, 40419), (729, 29940), (810, 26946), (972, 22455), (998, 21870), (1215, 17964), (1458, 14970), (1497, 14580), (1620, 13473), (1996, 10935), (2187, 9980), (2430, 8982), (2495, 8748), (2916, 7485), (2994, 7290), (3645, 5988), (4374, 4990), (4491, 4860)]