18669998

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:272

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 11742802

約数列:

[1, 2, 31, 43, 47, 62, 86, 94, 149, 298, 1333, 1457, 2021, 2666, 2914, 4042, 4619, 6407, 7003, 9238, 12814, 14006, 62651, 125302, 198617, 217093, 301129, 397234, 434186, 602258, 9334999, 18669998]

約数ペア:

[(1, 18669998), (2, 9334999), (31, 602258), (43, 434186), (47, 397234), (62, 301129), (86, 217093), (94, 198617), (149, 125302), (298, 62651), (1333, 14006), (1457, 12814), (2021, 9238), (2666, 7003), (2914, 6407), (4042, 4619)]