18206028

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:691

約数の個数: 72

約数和(自身を含む): 49649600

約数和(自身を除く): 31443572

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 43, 57, 76, 86, 114, 129, 171, 172, 228, 258, 342, 387, 516, 619, 684, 774, 817, 1238, 1548, 1634, 1857, 2451, 2476, 3268, 3714, 4902, 5571, 7353, 7428, 9804, 11142, 11761, 14706, 22284, 23522, 26617, 29412, 35283, 47044, 53234, 70566, 79851, 105849, 106468, 141132, 159702, 211698, 239553, 319404, 423396, 479106, 505723, 958212, 1011446, 1517169, 2022892, 3034338, 4551507, 6068676, 9103014, 18206028]

約数ペア:

[(1, 18206028), (2, 9103014), (3, 6068676), (4, 4551507), (6, 3034338), (9, 2022892), (12, 1517169), (18, 1011446), (19, 958212), (36, 505723), (38, 479106), (43, 423396), (57, 319404), (76, 239553), (86, 211698), (114, 159702), (129, 141132), (171, 106468), (172, 105849), (228, 79851), (258, 70566), (342, 53234), (387, 47044), (516, 35283), (619, 29412), (684, 26617), (774, 23522), (817, 22284), (1238, 14706), (1548, 11761), (1634, 11142), (1857, 9804), (2451, 7428), (2476, 7353), (3268, 5571), (3714, 4902)]