21509490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6961}}^1$

素因数の和:7074

約数の個数: 32

約数和(自身を含む): 52131456

約数和(自身を除く): 30621966

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 103, 206, 309, 515, 618, 1030, 1545, 3090, 6961, 13922, 20883, 34805, 41766, 69610, 104415, 208830, 716983, 1433966, 2150949, 3584915, 4301898, 7169830, 10754745, 21509490]

約数ペア:

[(1, 21509490), (2, 10754745), (3, 7169830), (5, 4301898), (6, 3584915), (10, 2150949), (15, 1433966), (30, 716983), (103, 208830), (206, 104415), (309, 69610), (515, 41766), (618, 34805), (1030, 20883), (1545, 13922), (3090, 6961)]