21000480676

素因数分解:

$2^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1049}}^1\times {\mathrm{1783}}^1$

素因数の和:3244

約数の個数: 48

約数和(自身を含む): 42169478400

約数和(自身を除く): 21168997724

約数列:

[1, 2, 4, 7, 14, 28, 401, 802, 1049, 1604, 1783, 2098, 2807, 3566, 4196, 5614, 7132, 7343, 11228, 12481, 14686, 24962, 29372, 49924, 420649, 714983, 841298, 1429966, 1682596, 1870367, 2859932, 2944543, 3740734, 5004881, 5889086, 7481468, 10009762, 11778172, 13092569, 20019524, 26185138, 52370276, 750017167, 1500034334, 3000068668, 5250120169, 10500240338, 21000480676]

約数ペア:

[(1, 21000480676), (2, 10500240338), (4, 5250120169), (7, 3000068668), (14, 1500034334), (28, 750017167), (401, 52370276), (802, 26185138), (1049, 20019524), (1604, 13092569), (1783, 11778172), (2098, 10009762), (2807, 7481468), (3566, 5889086), (4196, 5004881), (5614, 3740734), (7132, 2944543), (7343, 2859932), (11228, 1870367), (12481, 1682596), (14686, 1429966), (24962, 841298), (29372, 714983), (49924, 420649)]