21158835

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{383}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 35389440

約数和(自身を除く): 14230605

約数列:

[1, 3, 5, 15, 29, 87, 127, 145, 381, 383, 435, 635, 1149, 1905, 1915, 3683, 5745, 11049, 11107, 18415, 33321, 48641, 55245, 55535, 145923, 166605, 243205, 729615, 1410589, 4231767, 7052945, 21158835]

約数ペア:

[(1, 21158835), (3, 7052945), (5, 4231767), (15, 1410589), (29, 729615), (87, 243205), (127, 166605), (145, 145923), (381, 55535), (383, 55245), (435, 48641), (635, 33321), (1149, 18415), (1905, 11107), (1915, 11049), (3683, 5745)]