20713914

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1553}}^1$

素因数の和:1596

約数の個数: 64

約数和(自身を含む): 52214400

約数和(自身を除く): 31500486

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 114, 117, 171, 234, 247, 342, 351, 494, 513, 702, 741, 1026, 1482, 1553, 2223, 3106, 4446, 4659, 6669, 9318, 13338, 13977, 20189, 27954, 29507, 40378, 41931, 59014, 60567, 83862, 88521, 121134, 177042, 181701, 265563, 363402, 383591, 531126, 545103, 767182, 796689, 1090206, 1150773, 1593378, 2301546, 3452319, 6904638, 10356957, 20713914]

約数ペア:

[(1, 20713914), (2, 10356957), (3, 6904638), (6, 3452319), (9, 2301546), (13, 1593378), (18, 1150773), (19, 1090206), (26, 796689), (27, 767182), (38, 545103), (39, 531126), (54, 383591), (57, 363402), (78, 265563), (114, 181701), (117, 177042), (171, 121134), (234, 88521), (247, 83862), (342, 60567), (351, 59014), (494, 41931), (513, 40378), (702, 29507), (741, 27954), (1026, 20189), (1482, 13977), (1553, 13338), (2223, 9318), (3106, 6669), (4446, 4659)]