7981449

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 13086720

約数和(自身を除く): 5105271

約数列:

[1, 3, 7, 17, 21, 51, 79, 119, 237, 283, 357, 553, 849, 1343, 1659, 1981, 4029, 4811, 5943, 9401, 14433, 22357, 28203, 33677, 67071, 101031, 156499, 380069, 469497, 1140207, 2660483, 7981449]

約数ペア:

[(1, 7981449), (3, 2660483), (7, 1140207), (17, 469497), (21, 380069), (51, 156499), (79, 101031), (119, 67071), (237, 33677), (283, 28203), (357, 22357), (553, 14433), (849, 9401), (1343, 5943), (1659, 4811), (1981, 4029)]