17192721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 28643328

約数和(自身を除く): 11450607

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 887, 923, 1491, 2661, 2769, 6209, 6461, 11531, 18627, 19383, 34593, 62977, 80717, 188931, 242151, 440839, 818701, 1322517, 2456103, 5730907, 17192721]

約数ペア:

[(1, 17192721), (3, 5730907), (7, 2456103), (13, 1322517), (21, 818701), (39, 440839), (71, 242151), (91, 188931), (213, 80717), (273, 62977), (497, 34593), (887, 19383), (923, 18627), (1491, 11531), (2661, 6461), (2769, 6209)]