21701180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{769}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 48898080

約数和(自身を除く): 27196900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 83, 85, 166, 170, 332, 340, 415, 769, 830, 1411, 1538, 1660, 2822, 3076, 3845, 5644, 7055, 7690, 13073, 14110, 15380, 26146, 28220, 52292, 63827, 65365, 127654, 130730, 255308, 261460, 319135, 638270, 1085059, 1276540, 2170118, 4340236, 5425295, 10850590, 21701180]

約数ペア:

[(1, 21701180), (2, 10850590), (4, 5425295), (5, 4340236), (10, 2170118), (17, 1276540), (20, 1085059), (34, 638270), (68, 319135), (83, 261460), (85, 255308), (166, 130730), (170, 127654), (332, 65365), (340, 63827), (415, 52292), (769, 28220), (830, 26146), (1411, 15380), (1538, 14110), (1660, 13073), (2822, 7690), (3076, 7055), (3845, 5644)]