21644340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2389}}^1$

素因数の和:2552

約数の個数: 48

約数和(自身を含む): 61031040

約数和(自身を除く): 39386700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 151, 302, 453, 604, 755, 906, 1510, 1812, 2265, 2389, 3020, 4530, 4778, 7167, 9060, 9556, 11945, 14334, 23890, 28668, 35835, 47780, 71670, 143340, 360739, 721478, 1082217, 1442956, 1803695, 2164434, 3607390, 4328868, 5411085, 7214780, 10822170, 21644340]

約数ペア:

[(1, 21644340), (2, 10822170), (3, 7214780), (4, 5411085), (5, 4328868), (6, 3607390), (10, 2164434), (12, 1803695), (15, 1442956), (20, 1082217), (30, 721478), (60, 360739), (151, 143340), (302, 71670), (453, 47780), (604, 35835), (755, 28668), (906, 23890), (1510, 14334), (1812, 11945), (2265, 9556), (2389, 9060), (3020, 7167), (4530, 4778)]