21589980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2383}}^1$

素因数の和:2546

約数の個数: 48

約数和(自身を含む): 60877824

約数和(自身を除く): 39287844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 151, 302, 453, 604, 755, 906, 1510, 1812, 2265, 2383, 3020, 4530, 4766, 7149, 9060, 9532, 11915, 14298, 23830, 28596, 35745, 47660, 71490, 142980, 359833, 719666, 1079499, 1439332, 1799165, 2158998, 3598330, 4317996, 5397495, 7196660, 10794990, 21589980]

約数ペア:

[(1, 21589980), (2, 10794990), (3, 7196660), (4, 5397495), (5, 4317996), (6, 3598330), (10, 2158998), (12, 1799165), (15, 1439332), (20, 1079499), (30, 719666), (60, 359833), (151, 142980), (302, 71490), (453, 47660), (604, 35745), (755, 28596), (906, 23830), (1510, 14298), (1812, 11915), (2265, 9532), (2383, 9060), (3020, 7149), (4530, 4766)]