20951668

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{257}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 37384200

約数和(自身を除く): 16432532

約数列:

[1, 2, 4, 89, 178, 229, 257, 356, 458, 514, 916, 1028, 20381, 22873, 40762, 45746, 58853, 81524, 91492, 117706, 235412, 5237917, 10475834, 20951668]

約数ペア:

[(1, 20951668), (2, 10475834), (4, 5237917), (89, 235412), (178, 117706), (229, 91492), (257, 81524), (356, 58853), (458, 45746), (514, 40762), (916, 22873), (1028, 20381)]