213166995

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{20389}}^1$

素因数の和:20455

約数の個数: 32

約数和(自身を含む): 369956160

約数和(自身を除く): 156789165

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 205, 255, 615, 697, 2091, 3485, 10455, 20389, 61167, 101945, 305835, 346613, 835949, 1039839, 1733065, 2507847, 4179745, 5199195, 12539235, 14211133, 42633399, 71055665, 213166995]

約数ペア:

[(1, 213166995), (3, 71055665), (5, 42633399), (15, 14211133), (17, 12539235), (41, 5199195), (51, 4179745), (85, 2507847), (123, 1733065), (205, 1039839), (255, 835949), (615, 346613), (697, 305835), (2091, 101945), (3485, 61167), (10455, 20389)]