21388150

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1153}}^1$

素因数の和:1225

約数の個数: 48

約数和(自身を含む): 46363104

約数和(自身を除く): 24974954

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 53, 70, 106, 175, 265, 350, 371, 530, 742, 1153, 1325, 1855, 2306, 2650, 3710, 5765, 8071, 9275, 11530, 16142, 18550, 28825, 40355, 57650, 61109, 80710, 122218, 201775, 305545, 403550, 427763, 611090, 855526, 1527725, 2138815, 3055450, 4277630, 10694075, 21388150]

約数ペア:

[(1, 21388150), (2, 10694075), (5, 4277630), (7, 3055450), (10, 2138815), (14, 1527725), (25, 855526), (35, 611090), (50, 427763), (53, 403550), (70, 305545), (106, 201775), (175, 122218), (265, 80710), (350, 61109), (371, 57650), (530, 40355), (742, 28825), (1153, 18550), (1325, 16142), (1855, 11530), (2306, 9275), (2650, 8071), (3710, 5765)]