21837860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5839}}^1$

素因数の和:5876

約数の個数: 48

約数和(自身を含む): 52980480

約数和(自身を除く): 31142620

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5839, 11678, 23356, 29195, 58390, 64229, 99263, 116780, 128458, 198526, 256916, 321145, 397052, 496315, 642290, 992630, 1091893, 1284580, 1985260, 2183786, 4367572, 5459465, 10918930, 21837860]

約数ペア:

[(1, 21837860), (2, 10918930), (4, 5459465), (5, 4367572), (10, 2183786), (11, 1985260), (17, 1284580), (20, 1091893), (22, 992630), (34, 642290), (44, 496315), (55, 397052), (68, 321145), (85, 256916), (110, 198526), (170, 128458), (187, 116780), (220, 99263), (340, 64229), (374, 58390), (748, 29195), (935, 23356), (1870, 11678), (3740, 5839)]