21551510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3659}}^1$

素因数の和:3716

約数の個数: 32

約数和(自身を含む): 42163200

約数和(自身を除く): 20611690

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 3659, 5890, 7318, 18295, 36590, 69521, 113429, 139042, 226858, 347605, 567145, 695210, 1134290, 2155151, 4310302, 10775755, 21551510]

約数ペア:

[(1, 21551510), (2, 10775755), (5, 4310302), (10, 2155151), (19, 1134290), (31, 695210), (38, 567145), (62, 347605), (95, 226858), (155, 139042), (190, 113429), (310, 69521), (589, 36590), (1178, 18295), (2945, 7318), (3659, 5890)]