251831916

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3001}}^1$

素因数の和:3061

約数の個数: 120

約数和(自身を含む): 772978976

約数和(自身を除く): 521147060

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 37, 42, 54, 63, 74, 81, 84, 108, 111, 126, 148, 162, 189, 222, 252, 259, 324, 333, 378, 444, 518, 567, 666, 756, 777, 999, 1036, 1134, 1332, 1554, 1998, 2268, 2331, 2997, 3001, 3108, 3996, 4662, 5994, 6002, 6993, 9003, 9324, 11988, 12004, 13986, 18006, 20979, 21007, 27009, 27972, 36012, 41958, 42014, 54018, 63021, 81027, 83916, 84028, 108036, 111037, 126042, 162054, 189063, 222074, 243081, 252084, 324108, 333111, 378126, 444148, 486162, 567189, 666222, 756252, 777259, 972324, 999333, 1134378, 1332444, 1554518, 1701567, 1998666, 2268756, 2331777, 2997999, 3109036, 3403134, 3997332, 4663554, 5995998, 6806268, 6995331, 8993997, 9327108, 11991996, 13990662, 17987994, 20985993, 27981324, 35975988, 41971986, 62957979, 83943972, 125915958, 251831916]

約数ペア:

[(1, 251831916), (2, 125915958), (3, 83943972), (4, 62957979), (6, 41971986), (7, 35975988), (9, 27981324), (12, 20985993), (14, 17987994), (18, 13990662), (21, 11991996), (27, 9327108), (28, 8993997), (36, 6995331), (37, 6806268), (42, 5995998), (54, 4663554), (63, 3997332), (74, 3403134), (81, 3109036), (84, 2997999), (108, 2331777), (111, 2268756), (126, 1998666), (148, 1701567), (162, 1554518), (189, 1332444), (222, 1134378), (252, 999333), (259, 972324), (324, 777259), (333, 756252), (378, 666222), (444, 567189), (518, 486162), (567, 444148), (666, 378126), (756, 333111), (777, 324108), (999, 252084), (1036, 243081), (1134, 222074), (1332, 189063), (1554, 162054), (1998, 126042), (2268, 111037), (2331, 108036), (2997, 84028), (3001, 83916), (3108, 81027), (3996, 63021), (4662, 54018), (5994, 42014), (6002, 41958), (6993, 36012), (9003, 27972), (9324, 27009), (11988, 21007), (12004, 20979), (13986, 18006)]