21911220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2969}}^1$

素因数の和:3025

約数の個数: 72

約数和(自身を含む): 68108040

約数和(自身を除く): 46196820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2969, 3690, 5938, 7380, 8907, 11876, 14845, 17814, 26721, 29690, 35628, 44535, 53442, 59380, 89070, 106884, 121729, 133605, 178140, 243458, 267210, 365187, 486916, 534420, 608645, 730374, 1095561, 1217290, 1460748, 1825935, 2191122, 2434580, 3651870, 4382244, 5477805, 7303740, 10955610, 21911220]

約数ペア:

[(1, 21911220), (2, 10955610), (3, 7303740), (4, 5477805), (5, 4382244), (6, 3651870), (9, 2434580), (10, 2191122), (12, 1825935), (15, 1460748), (18, 1217290), (20, 1095561), (30, 730374), (36, 608645), (41, 534420), (45, 486916), (60, 365187), (82, 267210), (90, 243458), (123, 178140), (164, 133605), (180, 121729), (205, 106884), (246, 89070), (369, 59380), (410, 53442), (492, 44535), (615, 35628), (738, 29690), (820, 26721), (1230, 17814), (1476, 14845), (1845, 11876), (2460, 8907), (2969, 7380), (3690, 5938)]