21479055

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 38386080

約数和(自身を除く): 16907025

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 169, 185, 195, 229, 481, 507, 555, 687, 845, 1145, 1443, 2405, 2535, 2977, 3435, 6253, 7215, 8473, 8931, 14885, 18759, 25419, 31265, 38701, 42365, 44655, 93795, 110149, 116103, 127095, 193505, 330447, 550745, 580515, 1431937, 1652235, 4295811, 7159685, 21479055]

約数ペア:

[(1, 21479055), (3, 7159685), (5, 4295811), (13, 1652235), (15, 1431937), (37, 580515), (39, 550745), (65, 330447), (111, 193505), (169, 127095), (185, 116103), (195, 110149), (229, 93795), (481, 44655), (507, 42365), (555, 38701), (687, 31265), (845, 25419), (1145, 18759), (1443, 14885), (2405, 8931), (2535, 8473), (2977, 7215), (3435, 6253)]