21477630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1831}}^1$

素因数の和:1881

約数の個数: 64

約数和(自身を含む): 56982528

約数和(自身を除く): 35504898

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 23, 30, 34, 46, 51, 69, 85, 102, 115, 138, 170, 230, 255, 345, 391, 510, 690, 782, 1173, 1831, 1955, 2346, 3662, 3910, 5493, 5865, 9155, 10986, 11730, 18310, 27465, 31127, 42113, 54930, 62254, 84226, 93381, 126339, 155635, 186762, 210565, 252678, 311270, 421130, 466905, 631695, 715921, 933810, 1263390, 1431842, 2147763, 3579605, 4295526, 7159210, 10738815, 21477630]

約数ペア:

[(1, 21477630), (2, 10738815), (3, 7159210), (5, 4295526), (6, 3579605), (10, 2147763), (15, 1431842), (17, 1263390), (23, 933810), (30, 715921), (34, 631695), (46, 466905), (51, 421130), (69, 311270), (85, 252678), (102, 210565), (115, 186762), (138, 155635), (170, 126339), (230, 93381), (255, 84226), (345, 62254), (391, 54930), (510, 42113), (690, 31127), (782, 27465), (1173, 18310), (1831, 11730), (1955, 10986), (2346, 9155), (3662, 5865), (3910, 5493)]