21260938818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{506212829}}^1$

素因数の和:506212841

約数の個数: 16

約数和(自身を含む): 48596431680

約数和(自身を除く): 27335492862

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 506212829, 1012425658, 1518638487, 3037276974, 3543489803, 7086979606, 10630469409, 21260938818]

約数ペア:

[(1, 21260938818), (2, 10630469409), (3, 7086979606), (6, 3543489803), (7, 3037276974), (14, 1518638487), (21, 1012425658), (42, 506212829)]