21782152

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 27206648

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 53, 56, 82, 106, 164, 179, 212, 287, 328, 358, 371, 424, 574, 716, 742, 1148, 1253, 1432, 1484, 2173, 2296, 2506, 2968, 4346, 5012, 7339, 8692, 9487, 10024, 14678, 15211, 17384, 18974, 29356, 30422, 37948, 51373, 58712, 60844, 66409, 75896, 102746, 121688, 132818, 205492, 265636, 388967, 410984, 531272, 777934, 1555868, 2722769, 3111736, 5445538, 10891076, 21782152]

約数ペア:

[(1, 21782152), (2, 10891076), (4, 5445538), (7, 3111736), (8, 2722769), (14, 1555868), (28, 777934), (41, 531272), (53, 410984), (56, 388967), (82, 265636), (106, 205492), (164, 132818), (179, 121688), (212, 102746), (287, 75896), (328, 66409), (358, 60844), (371, 58712), (424, 51373), (574, 37948), (716, 30422), (742, 29356), (1148, 18974), (1253, 17384), (1432, 15211), (1484, 14678), (2173, 10024), (2296, 9487), (2506, 8692), (2968, 7339), (4346, 5012)]