20121636388

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2437}}^1\times {\mathrm{12821}}^1$

素因数の和:15292

約数の個数: 48

約数和(自身を含む): 42013488384

約数和(自身を除く): 21891851996

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 2437, 4874, 9748, 12821, 17059, 25642, 34118, 51284, 56051, 68236, 89747, 112102, 179494, 224204, 294883, 358988, 392357, 589766, 784714, 1179532, 1569428, 2064181, 4128362, 8256724, 31244777, 62489554, 124979108, 218713439, 437426878, 718629871, 874853756, 1437259742, 2874519484, 5030409097, 10060818194, 20121636388]

約数ペア:

[(1, 20121636388), (2, 10060818194), (4, 5030409097), (7, 2874519484), (14, 1437259742), (23, 874853756), (28, 718629871), (46, 437426878), (92, 218713439), (161, 124979108), (322, 62489554), (644, 31244777), (2437, 8256724), (4874, 4128362), (9748, 2064181), (12821, 1569428), (17059, 1179532), (25642, 784714), (34118, 589766), (51284, 392357), (56051, 358988), (68236, 294883), (89747, 224204), (112102, 179494)]