21781230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31567}}^1$

素因数の和:31600

約数の個数: 32

約数和(自身を含む): 54549504

約数和(自身を除く): 32768274

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 31567, 63134, 94701, 157835, 189402, 315670, 473505, 726041, 947010, 1452082, 2178123, 3630205, 4356246, 7260410, 10890615, 21781230]

約数ペア:

[(1, 21781230), (2, 10890615), (3, 7260410), (5, 4356246), (6, 3630205), (10, 2178123), (15, 1452082), (23, 947010), (30, 726041), (46, 473505), (69, 315670), (115, 189402), (138, 157835), (230, 94701), (345, 63134), (690, 31567)]