21018062

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:428

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 14544178

約数列:

[1, 2, 13, 26, 31, 62, 89, 178, 293, 403, 586, 806, 1157, 2314, 2759, 3809, 5518, 7618, 9083, 18166, 26077, 35867, 52154, 71734, 118079, 236158, 339001, 678002, 808387, 1616774, 10509031, 21018062]

約数ペア:

[(1, 21018062), (2, 10509031), (13, 1616774), (26, 808387), (31, 678002), (62, 339001), (89, 236158), (178, 118079), (293, 71734), (403, 52154), (586, 35867), (806, 26077), (1157, 18166), (2314, 9083), (2759, 7618), (3809, 5518)]