21140262

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 55351296

約数和(自身を除く): 34211034

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 43, 66, 78, 86, 99, 117, 129, 143, 191, 198, 234, 258, 286, 382, 387, 429, 473, 559, 573, 774, 858, 946, 1118, 1146, 1287, 1419, 1677, 1719, 2101, 2483, 2574, 2838, 3354, 3438, 4202, 4257, 4966, 5031, 6149, 6303, 7449, 8213, 8514, 10062, 12298, 12606, 14898, 16426, 18447, 18909, 22347, 24639, 27313, 36894, 37818, 44694, 49278, 54626, 55341, 73917, 81939, 90343, 106769, 110682, 147834, 163878, 180686, 213538, 245817, 271029, 320307, 491634, 542058, 640614, 813087, 960921, 1174459, 1626174, 1921842, 2348918, 3523377, 7046754, 10570131, 21140262]

約数ペア:

[(1, 21140262), (2, 10570131), (3, 7046754), (6, 3523377), (9, 2348918), (11, 1921842), (13, 1626174), (18, 1174459), (22, 960921), (26, 813087), (33, 640614), (39, 542058), (43, 491634), (66, 320307), (78, 271029), (86, 245817), (99, 213538), (117, 180686), (129, 163878), (143, 147834), (191, 110682), (198, 106769), (234, 90343), (258, 81939), (286, 73917), (382, 55341), (387, 54626), (429, 49278), (473, 44694), (559, 37818), (573, 36894), (774, 27313), (858, 24639), (946, 22347), (1118, 18909), (1146, 18447), (1287, 16426), (1419, 14898), (1677, 12606), (1719, 12298), (2101, 10062), (2483, 8514), (2574, 8213), (2838, 7449), (3354, 6303), (3438, 6149), (4202, 5031), (4257, 4966)]