21187170

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8719}}^1$

素因数の和:8741

約数の個数: 48

約数和(自身を含む): 57133440

約数和(自身を除く): 35946270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8719, 17438, 26157, 43595, 52314, 78471, 87190, 130785, 156942, 235413, 261570, 392355, 470826, 706239, 784710, 1177065, 1412478, 2118717, 2354130, 3531195, 4237434, 7062390, 10593585, 21187170]

約数ペア:

[(1, 21187170), (2, 10593585), (3, 7062390), (5, 4237434), (6, 3531195), (9, 2354130), (10, 2118717), (15, 1412478), (18, 1177065), (27, 784710), (30, 706239), (45, 470826), (54, 392355), (81, 261570), (90, 235413), (135, 156942), (162, 130785), (243, 87190), (270, 78471), (405, 52314), (486, 43595), (810, 26157), (1215, 17438), (2430, 8719)]