19998536421

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{907}}^1\times {\mathrm{179261}}^1$

素因数の和:180212

約数の個数: 16

約数和(自身を含む): 27345342528

約数和(自身を除く): 7346806107

約数列:

[1, 3, 41, 123, 907, 2721, 37187, 111561, 179261, 537783, 7349701, 22049103, 162589727, 487769181, 6666178807, 19998536421]

約数ペア:

[(1, 19998536421), (3, 6666178807), (41, 487769181), (123, 162589727), (907, 22049103), (2721, 7349701), (37187, 537783), (111561, 179261)]