20371365

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21557}}^1$

素因数の和:21578

約数の個数: 32

約数和(自身を含む): 41391360

約数和(自身を除く): 21019995

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21557, 64671, 107785, 150899, 194013, 323355, 452697, 582039, 754495, 970065, 1358091, 2263485, 2910195, 4074273, 6790455, 20371365]

約数ペア:

[(1, 20371365), (3, 6790455), (5, 4074273), (7, 2910195), (9, 2263485), (15, 1358091), (21, 970065), (27, 754495), (35, 582039), (45, 452697), (63, 323355), (105, 194013), (135, 150899), (189, 107785), (315, 64671), (945, 21557)]