21053930

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 38873088

約数和(自身を除く): 17819158

約数列:

[1, 2, 5, 10, 73, 146, 151, 191, 302, 365, 382, 730, 755, 955, 1510, 1910, 11023, 13943, 22046, 27886, 28841, 55115, 57682, 69715, 110230, 139430, 144205, 288410, 2105393, 4210786, 10526965, 21053930]

約数ペア:

[(1, 21053930), (2, 10526965), (5, 4210786), (10, 2105393), (73, 288410), (146, 144205), (151, 139430), (191, 110230), (302, 69715), (365, 57682), (382, 55115), (730, 28841), (755, 27886), (955, 22046), (1510, 13943), (1910, 11023)]