19860646

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 33981696

約数和(自身を除く): 14121050

約数列:

[1, 2, 13, 26, 31, 41, 62, 82, 403, 533, 601, 806, 1066, 1202, 1271, 2542, 7813, 15626, 16523, 18631, 24641, 33046, 37262, 49282, 242203, 320333, 484406, 640666, 763871, 1527742, 9930323, 19860646]

約数ペア:

[(1, 19860646), (2, 9930323), (13, 1527742), (26, 763871), (31, 640666), (41, 484406), (62, 320333), (82, 242203), (403, 49282), (533, 37262), (601, 33046), (806, 24641), (1066, 18631), (1202, 16523), (1271, 15626), (2542, 7813)]