21085506

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{359}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 28447614

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 251, 359, 502, 718, 753, 1077, 1506, 2154, 2259, 3231, 3263, 4518, 4667, 6462, 6526, 9334, 9789, 14001, 19578, 28002, 29367, 42003, 58734, 84006, 90109, 180218, 270327, 540654, 810981, 1171417, 1621962, 2342834, 3514251, 7028502, 10542753, 21085506]

約数ペア:

[(1, 21085506), (2, 10542753), (3, 7028502), (6, 3514251), (9, 2342834), (13, 1621962), (18, 1171417), (26, 810981), (39, 540654), (78, 270327), (117, 180218), (234, 90109), (251, 84006), (359, 58734), (502, 42003), (718, 29367), (753, 28002), (1077, 19578), (1506, 14001), (2154, 9789), (2259, 9334), (3231, 6526), (3263, 6462), (4518, 4667)]