21879170

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{719}}^1$

素因数の和:922

約数の個数: 32

約数和(自身を含む): 41990400

約数和(自身を除く): 20111230

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 179, 358, 719, 895, 1438, 1790, 3043, 3595, 6086, 7190, 12223, 15215, 24446, 30430, 61115, 122230, 128701, 257402, 643505, 1287010, 2187917, 4375834, 10939585, 21879170]

約数ペア:

[(1, 21879170), (2, 10939585), (5, 4375834), (10, 2187917), (17, 1287010), (34, 643505), (85, 257402), (170, 128701), (179, 122230), (358, 61115), (719, 30430), (895, 24446), (1438, 15215), (1790, 12223), (3043, 7190), (3595, 6086)]