21088806

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 47029248

約数和(自身を除く): 25940442

約数列:

[1, 2, 3, 6, 17, 34, 47, 51, 53, 83, 94, 102, 106, 141, 159, 166, 249, 282, 318, 498, 799, 901, 1411, 1598, 1802, 2397, 2491, 2703, 2822, 3901, 4233, 4399, 4794, 4982, 5406, 7473, 7802, 8466, 8798, 11703, 13197, 14946, 23406, 26394, 42347, 66317, 74783, 84694, 127041, 132634, 149566, 198951, 206753, 224349, 254082, 397902, 413506, 448698, 620259, 1240518, 3514801, 7029602, 10544403, 21088806]

約数ペア:

[(1, 21088806), (2, 10544403), (3, 7029602), (6, 3514801), (17, 1240518), (34, 620259), (47, 448698), (51, 413506), (53, 397902), (83, 254082), (94, 224349), (102, 206753), (106, 198951), (141, 149566), (159, 132634), (166, 127041), (249, 84694), (282, 74783), (318, 66317), (498, 42347), (799, 26394), (901, 23406), (1411, 14946), (1598, 13197), (1802, 11703), (2397, 8798), (2491, 8466), (2703, 7802), (2822, 7473), (3901, 5406), (4233, 4982), (4399, 4794)]