20289738

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 49690368

約数和(自身を除く): 29400630

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 119, 157, 181, 238, 314, 357, 362, 471, 543, 714, 942, 1086, 1099, 1267, 2198, 2534, 2669, 3077, 3297, 3801, 5338, 6154, 6594, 7602, 8007, 9231, 16014, 18462, 18683, 21539, 28417, 37366, 43078, 56049, 56834, 64617, 85251, 112098, 129234, 170502, 198919, 397838, 483089, 596757, 966178, 1193514, 1449267, 2898534, 3381623, 6763246, 10144869, 20289738]

約数ペア:

[(1, 20289738), (2, 10144869), (3, 6763246), (6, 3381623), (7, 2898534), (14, 1449267), (17, 1193514), (21, 966178), (34, 596757), (42, 483089), (51, 397838), (102, 198919), (119, 170502), (157, 129234), (181, 112098), (238, 85251), (314, 64617), (357, 56834), (362, 56049), (471, 43078), (543, 37366), (714, 28417), (942, 21539), (1086, 18683), (1099, 18462), (1267, 16014), (2198, 9231), (2534, 8007), (2669, 7602), (3077, 6594), (3297, 6154), (3801, 5338)]