81613038

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{2131}}^1$

素因数の和:2640

約数の個数: 32

約数和(自身を含む): 176222592

約数和(自身を除く): 94609554

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 491, 982, 1473, 2131, 2946, 4262, 6383, 6393, 12766, 12786, 19149, 27703, 38298, 55406, 83109, 166218, 1046321, 2092642, 3138963, 6277926, 13602173, 27204346, 40806519, 81613038]

約数ペア:

[(1, 81613038), (2, 40806519), (3, 27204346), (6, 13602173), (13, 6277926), (26, 3138963), (39, 2092642), (78, 1046321), (491, 166218), (982, 83109), (1473, 55406), (2131, 38298), (2946, 27703), (4262, 19149), (6383, 12786), (6393, 12766)]