21168708

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 55413120

約数和(自身を除く): 34244412

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 61, 66, 121, 122, 132, 183, 239, 242, 244, 363, 366, 478, 484, 671, 717, 726, 732, 956, 1342, 1434, 1452, 2013, 2629, 2684, 2868, 4026, 5258, 7381, 7887, 8052, 10516, 14579, 14762, 15774, 22143, 28919, 29158, 29524, 31548, 43737, 44286, 57838, 58316, 86757, 87474, 88572, 115676, 160369, 173514, 174948, 320738, 347028, 481107, 641476, 962214, 1764059, 1924428, 3528118, 5292177, 7056236, 10584354, 21168708]

約数ペア:

[(1, 21168708), (2, 10584354), (3, 7056236), (4, 5292177), (6, 3528118), (11, 1924428), (12, 1764059), (22, 962214), (33, 641476), (44, 481107), (61, 347028), (66, 320738), (121, 174948), (122, 173514), (132, 160369), (183, 115676), (239, 88572), (242, 87474), (244, 86757), (363, 58316), (366, 57838), (478, 44286), (484, 43737), (671, 31548), (717, 29524), (726, 29158), (732, 28919), (956, 22143), (1342, 15774), (1434, 14762), (1452, 14579), (2013, 10516), (2629, 8052), (2684, 7887), (2868, 7381), (4026, 5258)]