21940860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{727}}^1$

素因数の和:1242

約数の個数: 48

約数和(自身を含む): 61641216

約数和(自身を除く): 39700356

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 503, 727, 1006, 1454, 1509, 2012, 2181, 2515, 2908, 3018, 3635, 4362, 5030, 6036, 7270, 7545, 8724, 10060, 10905, 14540, 15090, 21810, 30180, 43620, 365681, 731362, 1097043, 1462724, 1828405, 2194086, 3656810, 4388172, 5485215, 7313620, 10970430, 21940860]

約数ペア:

[(1, 21940860), (2, 10970430), (3, 7313620), (4, 5485215), (5, 4388172), (6, 3656810), (10, 2194086), (12, 1828405), (15, 1462724), (20, 1097043), (30, 731362), (60, 365681), (503, 43620), (727, 30180), (1006, 21810), (1454, 15090), (1509, 14540), (2012, 10905), (2181, 10060), (2515, 8724), (2908, 7545), (3018, 7270), (3635, 6036), (4362, 5030)]