21470535

素因数分解:

$3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1013}}^1$

素因数の和:1184

約数の個数: 32

約数和(自身を含む): 38450880

約数和(自身を除く): 16980345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 1013, 1413, 2355, 3039, 4239, 5065, 7065, 9117, 15195, 21195, 27351, 45585, 136755, 159041, 477123, 795205, 1431369, 2385615, 4294107, 7156845, 21470535]

約数ペア:

[(1, 21470535), (3, 7156845), (5, 4294107), (9, 2385615), (15, 1431369), (27, 795205), (45, 477123), (135, 159041), (157, 136755), (471, 45585), (785, 27351), (1013, 21195), (1413, 15195), (2355, 9117), (3039, 7065), (4239, 5065)]