19860615

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 37140480

約数和(自身を除く): 17279865

約数列:

[1, 3, 5, 9, 15, 23, 31, 45, 69, 93, 115, 155, 207, 279, 345, 465, 619, 713, 1035, 1395, 1857, 2139, 3095, 3565, 5571, 6417, 9285, 10695, 14237, 19189, 27855, 32085, 42711, 57567, 71185, 95945, 128133, 172701, 213555, 287835, 441347, 640665, 863505, 1324041, 2206735, 3972123, 6620205, 19860615]

約数ペア:

[(1, 19860615), (3, 6620205), (5, 3972123), (9, 2206735), (15, 1324041), (23, 863505), (31, 640665), (45, 441347), (69, 287835), (93, 213555), (115, 172701), (155, 128133), (207, 95945), (279, 71185), (345, 57567), (465, 42711), (619, 32085), (713, 27855), (1035, 19189), (1395, 14237), (1857, 10695), (2139, 9285), (3095, 6417), (3565, 5571)]