21116196

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 34654428

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 83, 111, 148, 166, 191, 222, 249, 332, 333, 382, 444, 498, 573, 666, 747, 764, 996, 1146, 1332, 1494, 1719, 2292, 2988, 3071, 3438, 6142, 6876, 7067, 9213, 12284, 14134, 15853, 18426, 21201, 27639, 28268, 31706, 36852, 42402, 47559, 55278, 63412, 63603, 84804, 95118, 110556, 127206, 142677, 190236, 254412, 285354, 570708, 586561, 1173122, 1759683, 2346244, 3519366, 5279049, 7038732, 10558098, 21116196]

約数ペア:

[(1, 21116196), (2, 10558098), (3, 7038732), (4, 5279049), (6, 3519366), (9, 2346244), (12, 1759683), (18, 1173122), (36, 586561), (37, 570708), (74, 285354), (83, 254412), (111, 190236), (148, 142677), (166, 127206), (191, 110556), (222, 95118), (249, 84804), (332, 63603), (333, 63412), (382, 55278), (444, 47559), (498, 42402), (573, 36852), (666, 31706), (747, 28268), (764, 27639), (996, 21201), (1146, 18426), (1332, 15853), (1494, 14134), (1719, 12284), (2292, 9213), (2988, 7067), (3071, 6876), (3438, 6142)]