28427868

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1213}}^1$

素因数の和:1264

約数の個数: 96

約数和(自身を含む): 87019520

約数和(自身を除く): 58591652

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 54, 62, 63, 84, 93, 108, 124, 126, 186, 189, 217, 252, 279, 372, 378, 434, 558, 651, 756, 837, 868, 1116, 1213, 1302, 1674, 1953, 2426, 2604, 3348, 3639, 3906, 4852, 5859, 7278, 7812, 8491, 10917, 11718, 14556, 16982, 21834, 23436, 25473, 32751, 33964, 37603, 43668, 50946, 65502, 75206, 76419, 101892, 112809, 131004, 150412, 152838, 225618, 229257, 263221, 305676, 338427, 451236, 458514, 526442, 676854, 789663, 917028, 1015281, 1052884, 1353708, 1579326, 2030562, 2368989, 3158652, 4061124, 4737978, 7106967, 9475956, 14213934, 28427868]

約数ペア:

[(1, 28427868), (2, 14213934), (3, 9475956), (4, 7106967), (6, 4737978), (7, 4061124), (9, 3158652), (12, 2368989), (14, 2030562), (18, 1579326), (21, 1353708), (27, 1052884), (28, 1015281), (31, 917028), (36, 789663), (42, 676854), (54, 526442), (62, 458514), (63, 451236), (84, 338427), (93, 305676), (108, 263221), (124, 229257), (126, 225618), (186, 152838), (189, 150412), (217, 131004), (252, 112809), (279, 101892), (372, 76419), (378, 75206), (434, 65502), (558, 50946), (651, 43668), (756, 37603), (837, 33964), (868, 32751), (1116, 25473), (1213, 23436), (1302, 21834), (1674, 16982), (1953, 14556), (2426, 11718), (2604, 10917), (3348, 8491), (3639, 7812), (3906, 7278), (4852, 5859)]