21768894

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{877}}^1$

素因数の和:1089

約数の個数: 48

約数和(自身を含む): 54239328

約数和(自身を除く): 32470434

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 197, 394, 591, 877, 1182, 1379, 1754, 1773, 2631, 2758, 3546, 4137, 5262, 6139, 7893, 8274, 12278, 12411, 15786, 18417, 24822, 36834, 55251, 110502, 172769, 345538, 518307, 1036614, 1209383, 1554921, 2418766, 3109842, 3628149, 7256298, 10884447, 21768894]

約数ペア:

[(1, 21768894), (2, 10884447), (3, 7256298), (6, 3628149), (7, 3109842), (9, 2418766), (14, 1554921), (18, 1209383), (21, 1036614), (42, 518307), (63, 345538), (126, 172769), (197, 110502), (394, 55251), (591, 36834), (877, 24822), (1182, 18417), (1379, 15786), (1754, 12411), (1773, 12278), (2631, 8274), (2758, 7893), (3546, 6139), (4137, 5262)]