20915671413

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{106261}}^1$

素因数の和:106394

約数の個数: 48

約数和(自身を含む): 35275583616

約数和(自身を除く): 14359912203

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 103, 147, 273, 309, 637, 721, 1339, 1911, 2163, 4017, 5047, 9373, 15141, 28119, 65611, 106261, 196833, 318783, 743827, 1381393, 2231481, 4144179, 5206789, 9669751, 10944883, 15620367, 29009253, 32834649, 67688257, 76614181, 142283479, 203064771, 229842543, 426850437, 536299267, 995984353, 1608897801, 2987953059, 6971890471, 20915671413]

約数ペア:

[(1, 20915671413), (3, 6971890471), (7, 2987953059), (13, 1608897801), (21, 995984353), (39, 536299267), (49, 426850437), (91, 229842543), (103, 203064771), (147, 142283479), (273, 76614181), (309, 67688257), (637, 32834649), (721, 29009253), (1339, 15620367), (1911, 10944883), (2163, 9669751), (4017, 5206789), (5047, 4144179), (9373, 2231481), (15141, 1381393), (28119, 743827), (65611, 318783), (106261, 196833)]