15216579

素因数分解:

$3^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:637

約数の個数: 40

約数和(自身を含む): 26577408

約数和(自身を除く): 11360829

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 141, 189, 329, 423, 567, 571, 987, 1269, 1713, 2961, 3807, 3997, 5139, 8883, 11991, 15417, 26649, 26837, 35973, 46251, 80511, 107919, 187859, 241533, 323757, 563577, 724599, 1690731, 2173797, 5072193, 15216579]

約数ペア:

[(1, 15216579), (3, 5072193), (7, 2173797), (9, 1690731), (21, 724599), (27, 563577), (47, 323757), (63, 241533), (81, 187859), (141, 107919), (189, 80511), (329, 46251), (423, 35973), (567, 26837), (571, 26649), (987, 15417), (1269, 11991), (1713, 8883), (2961, 5139), (3807, 3997)]