21192675

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1091}}^1$

素因数の和:1148

約数の個数: 48

約数和(自身を含む): 41164032

約数和(自身を除く): 19971357

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 37, 75, 105, 111, 175, 185, 259, 525, 555, 777, 925, 1091, 1295, 2775, 3273, 3885, 5455, 6475, 7637, 16365, 19425, 22911, 27275, 38185, 40367, 81825, 114555, 121101, 190925, 201835, 282569, 572775, 605505, 847707, 1009175, 1412845, 3027525, 4238535, 7064225, 21192675]

約数ペア:

[(1, 21192675), (3, 7064225), (5, 4238535), (7, 3027525), (15, 1412845), (21, 1009175), (25, 847707), (35, 605505), (37, 572775), (75, 282569), (105, 201835), (111, 190925), (175, 121101), (185, 114555), (259, 81825), (525, 40367), (555, 38185), (777, 27275), (925, 22911), (1091, 19425), (1295, 16365), (2775, 7637), (3273, 6475), (3885, 5455)]