21396630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13457}}^1$

素因数の和:13520

約数の個数: 32

約数和(自身を含む): 52324704

約数和(自身を除く): 30928074

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 265, 318, 530, 795, 1590, 13457, 26914, 40371, 67285, 80742, 134570, 201855, 403710, 713221, 1426442, 2139663, 3566105, 4279326, 7132210, 10698315, 21396630]

約数ペア:

[(1, 21396630), (2, 10698315), (3, 7132210), (5, 4279326), (6, 3566105), (10, 2139663), (15, 1426442), (30, 713221), (53, 403710), (106, 201855), (159, 134570), (265, 80742), (318, 67285), (530, 40371), (795, 26914), (1590, 13457)]