21145012

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 43972992

約数和(自身を除く): 22827980

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 113, 163, 164, 226, 287, 326, 452, 574, 652, 791, 1141, 1148, 1582, 2282, 3164, 4564, 4633, 6683, 9266, 13366, 18419, 18532, 26732, 32431, 36838, 46781, 64862, 73676, 93562, 128933, 129724, 187124, 257866, 515732, 755179, 1510358, 3020716, 5286253, 10572506, 21145012]

約数ペア:

[(1, 21145012), (2, 10572506), (4, 5286253), (7, 3020716), (14, 1510358), (28, 755179), (41, 515732), (82, 257866), (113, 187124), (163, 129724), (164, 128933), (226, 93562), (287, 73676), (326, 64862), (452, 46781), (574, 36838), (652, 32431), (791, 26732), (1141, 18532), (1148, 18419), (1582, 13366), (2282, 9266), (3164, 6683), (4564, 4633)]