21471340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5741}}^1$

素因数の和:5778

約数の個数: 48

約数和(自身を含む): 52091424

約数和(自身を除く): 30620084

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, 5741, 11482, 22964, 28705, 57410, 63151, 97597, 114820, 126302, 195194, 252604, 315755, 390388, 487985, 631510, 975970, 1073567, 1263020, 1951940, 2147134, 4294268, 5367835, 10735670, 21471340]

約数ペア:

[(1, 21471340), (2, 10735670), (4, 5367835), (5, 4294268), (10, 2147134), (11, 1951940), (17, 1263020), (20, 1073567), (22, 975970), (34, 631510), (44, 487985), (55, 390388), (68, 315755), (85, 252604), (110, 195194), (170, 126302), (187, 114820), (220, 97597), (340, 63151), (374, 57410), (748, 28705), (935, 22964), (1870, 11482), (3740, 5741)]