21364210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1277}}^1$

素因数の和:1530

約数の個数: 32

約数和(自身を含む): 44167680

約数和(自身を除く): 22803470

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 239, 478, 1195, 1277, 1673, 2390, 2554, 3346, 6385, 8365, 8939, 12770, 16730, 17878, 44695, 89390, 305203, 610406, 1526015, 2136421, 3052030, 4272842, 10682105, 21364210]

約数ペア:

[(1, 21364210), (2, 10682105), (5, 4272842), (7, 3052030), (10, 2136421), (14, 1526015), (35, 610406), (70, 305203), (239, 89390), (478, 44695), (1195, 17878), (1277, 16730), (1673, 12770), (2390, 8939), (2554, 8365), (3346, 6385)]