19979652

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3089}}^1$

素因数の和:3121

約数の個数: 72

約数和(自身を含む): 59179680

約数和(自身を除く): 39200028

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 49, 66, 77, 84, 98, 132, 147, 154, 196, 231, 294, 308, 462, 539, 588, 924, 1078, 1617, 2156, 3089, 3234, 6178, 6468, 9267, 12356, 18534, 21623, 33979, 37068, 43246, 64869, 67958, 86492, 101937, 129738, 135916, 151361, 203874, 237853, 259476, 302722, 407748, 454083, 475706, 605444, 713559, 908166, 951412, 1427118, 1664971, 1816332, 2854236, 3329942, 4994913, 6659884, 9989826, 19979652]

約数ペア:

[(1, 19979652), (2, 9989826), (3, 6659884), (4, 4994913), (6, 3329942), (7, 2854236), (11, 1816332), (12, 1664971), (14, 1427118), (21, 951412), (22, 908166), (28, 713559), (33, 605444), (42, 475706), (44, 454083), (49, 407748), (66, 302722), (77, 259476), (84, 237853), (98, 203874), (132, 151361), (147, 135916), (154, 129738), (196, 101937), (231, 86492), (294, 67958), (308, 64869), (462, 43246), (539, 37068), (588, 33979), (924, 21623), (1078, 18534), (1617, 12356), (2156, 9267), (3089, 6468), (3234, 6178)]