19855035

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 36461568

約数和(自身を除く): 16606533

約数列:

[1, 3, 5, 9, 15, 31, 43, 45, 93, 129, 155, 215, 279, 331, 387, 465, 645, 993, 1333, 1395, 1655, 1935, 2979, 3999, 4965, 6665, 10261, 11997, 14233, 14895, 19995, 30783, 42699, 51305, 59985, 71165, 92349, 128097, 153915, 213495, 441223, 461745, 640485, 1323669, 2206115, 3971007, 6618345, 19855035]

約数ペア:

[(1, 19855035), (3, 6618345), (5, 3971007), (9, 2206115), (15, 1323669), (31, 640485), (43, 461745), (45, 441223), (93, 213495), (129, 153915), (155, 128097), (215, 92349), (279, 71165), (331, 59985), (387, 51305), (465, 42699), (645, 30783), (993, 19995), (1333, 14895), (1395, 14233), (1655, 11997), (1935, 10261), (2979, 6665), (3999, 4965)]