21353530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:655

約数の個数: 64

約数和(自身を含む): 46811520

約数和(自身を除く): 25457990

約数列:

[1, 2, 5, 10, 11, 17, 19, 22, 34, 38, 55, 85, 95, 110, 170, 187, 190, 209, 323, 374, 418, 601, 646, 935, 1045, 1202, 1615, 1870, 2090, 3005, 3230, 3553, 6010, 6611, 7106, 10217, 11419, 13222, 17765, 20434, 22838, 33055, 35530, 51085, 57095, 66110, 102170, 112387, 114190, 125609, 194123, 224774, 251218, 388246, 561935, 628045, 970615, 1123870, 1256090, 1941230, 2135353, 4270706, 10676765, 21353530]

約数ペア:

[(1, 21353530), (2, 10676765), (5, 4270706), (10, 2135353), (11, 1941230), (17, 1256090), (19, 1123870), (22, 970615), (34, 628045), (38, 561935), (55, 388246), (85, 251218), (95, 224774), (110, 194123), (170, 125609), (187, 114190), (190, 112387), (209, 102170), (323, 66110), (374, 57095), (418, 51085), (601, 35530), (646, 33055), (935, 22838), (1045, 20434), (1202, 17765), (1615, 13222), (1870, 11419), (2090, 10217), (3005, 7106), (3230, 6611), (3553, 6010)]