19917690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51071}}^1$

素因数の和:51094

約数の個数: 32

約数和(自身を含む): 51480576

約数和(自身を除く): 31562886

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51071, 102142, 153213, 255355, 306426, 510710, 663923, 766065, 1327846, 1532130, 1991769, 3319615, 3983538, 6639230, 9958845, 19917690]

約数ペア:

[(1, 19917690), (2, 9958845), (3, 6639230), (5, 3983538), (6, 3319615), (10, 1991769), (13, 1532130), (15, 1327846), (26, 766065), (30, 663923), (39, 510710), (65, 306426), (78, 255355), (130, 153213), (195, 102142), (390, 51071)]