21865712

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{439}}^1$

素因数の和:741

約数の個数: 40

約数和(自身を含む): 46485120

約数和(自身を除く): 24619408

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 283, 439, 566, 878, 1132, 1756, 2264, 3113, 3512, 4528, 4829, 6226, 7024, 9658, 12452, 19316, 24904, 38632, 49808, 77264, 124237, 248474, 496948, 993896, 1366607, 1987792, 2733214, 5466428, 10932856, 21865712]

約数ペア:

[(1, 21865712), (2, 10932856), (4, 5466428), (8, 2733214), (11, 1987792), (16, 1366607), (22, 993896), (44, 496948), (88, 248474), (176, 124237), (283, 77264), (439, 49808), (566, 38632), (878, 24904), (1132, 19316), (1756, 12452), (2264, 9658), (3113, 7024), (3512, 6226), (4528, 4829)]