18657204982

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{20323}}^1$

素因数の和:20453

約数の個数: 64

約数和(自身を含む): 33434118144

約数和(自身を除く): 14776913162

約数列:

[1, 2, 13, 17, 26, 31, 34, 62, 67, 134, 221, 403, 442, 527, 806, 871, 1054, 1139, 1742, 2077, 2278, 4154, 6851, 13702, 14807, 20323, 27001, 29614, 35309, 40646, 54002, 70618, 264199, 345491, 459017, 528398, 630013, 690982, 918034, 1260026, 1361641, 2723282, 4491383, 8190169, 8982766, 10710221, 16380338, 17701333, 21420442, 23147897, 35402666, 42210871, 46295794, 84421742, 139232873, 278465746, 300922661, 548741323, 601845322, 717584807, 1097482646, 1435169614, 9328602491, 18657204982]

約数ペア:

[(1, 18657204982), (2, 9328602491), (13, 1435169614), (17, 1097482646), (26, 717584807), (31, 601845322), (34, 548741323), (62, 300922661), (67, 278465746), (134, 139232873), (221, 84421742), (403, 46295794), (442, 42210871), (527, 35402666), (806, 23147897), (871, 21420442), (1054, 17701333), (1139, 16380338), (1742, 10710221), (2077, 8982766), (2278, 8190169), (4154, 4491383), (6851, 2723282), (13702, 1361641), (14807, 1260026), (20323, 918034), (27001, 690982), (29614, 630013), (35309, 528398), (40646, 459017), (54002, 345491), (70618, 264199)]