21957894

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{761}}^1$

素因数の和:1005

約数の個数: 48

約数和(自身を含む): 54681120

約数和(自身を除く): 32723226

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 229, 458, 687, 761, 1374, 1522, 1603, 2061, 2283, 3206, 4122, 4566, 4809, 5327, 6849, 9618, 10654, 13698, 14427, 15981, 28854, 31962, 47943, 95886, 174269, 348538, 522807, 1045614, 1219883, 1568421, 2439766, 3136842, 3659649, 7319298, 10978947, 21957894]

約数ペア:

[(1, 21957894), (2, 10978947), (3, 7319298), (6, 3659649), (7, 3136842), (9, 2439766), (14, 1568421), (18, 1219883), (21, 1045614), (42, 522807), (63, 348538), (126, 174269), (229, 95886), (458, 47943), (687, 31962), (761, 28854), (1374, 15981), (1522, 14427), (1603, 13698), (2061, 10654), (2283, 9618), (3206, 6849), (4122, 5327), (4566, 4809)]