19937398

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:432

約数の個数: 32

約数和(自身を含む): 33657120

約数和(自身を除く): 13719722

約数列:

[1, 2, 13, 26, 41, 59, 82, 118, 317, 533, 634, 767, 1066, 1534, 2419, 4121, 4838, 8242, 12997, 18703, 25994, 31447, 37406, 62894, 168961, 243139, 337922, 486278, 766823, 1533646, 9968699, 19937398]

約数ペア:

[(1, 19937398), (2, 9968699), (13, 1533646), (26, 766823), (41, 486278), (59, 337922), (82, 243139), (118, 168961), (317, 62894), (533, 37406), (634, 31447), (767, 25994), (1066, 18703), (1534, 12997), (2419, 8242), (4121, 4838)]