18828628

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 42795648

約数和(自身を除く): 23967020

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 46, 52, 91, 92, 161, 169, 173, 182, 299, 322, 338, 346, 364, 598, 644, 676, 692, 1183, 1196, 1211, 2093, 2249, 2366, 2422, 3887, 3979, 4186, 4498, 4732, 4844, 7774, 7958, 8372, 8996, 15548, 15743, 15916, 27209, 27853, 29237, 31486, 51727, 54418, 55706, 58474, 62972, 103454, 108836, 111412, 116948, 204659, 206908, 362089, 409318, 672451, 724178, 818636, 1344902, 1448356, 2689804, 4707157, 9414314, 18828628]

約数ペア:

[(1, 18828628), (2, 9414314), (4, 4707157), (7, 2689804), (13, 1448356), (14, 1344902), (23, 818636), (26, 724178), (28, 672451), (46, 409318), (52, 362089), (91, 206908), (92, 204659), (161, 116948), (169, 111412), (173, 108836), (182, 103454), (299, 62972), (322, 58474), (338, 55706), (346, 54418), (364, 51727), (598, 31486), (644, 29237), (676, 27853), (692, 27209), (1183, 15916), (1196, 15743), (1211, 15548), (2093, 8996), (2249, 8372), (2366, 7958), (2422, 7774), (3887, 4844), (3979, 4732), (4186, 4498)]