217513856

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:284

約数の個数: 128

約数和(自身を含む): 526417920

約数和(自身を除く): 308904064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 41, 56, 62, 64, 82, 112, 124, 128, 164, 191, 217, 224, 248, 287, 328, 382, 434, 448, 496, 574, 656, 764, 868, 896, 992, 1148, 1271, 1312, 1337, 1528, 1736, 1984, 2296, 2542, 2624, 2674, 3056, 3472, 3968, 4592, 5084, 5248, 5348, 5921, 6112, 6944, 7831, 8897, 9184, 10168, 10696, 11842, 12224, 13888, 15662, 17794, 18368, 20336, 21392, 23684, 24448, 27776, 31324, 35588, 36736, 40672, 41447, 42784, 47368, 54817, 62648, 71176, 81344, 82894, 85568, 94736, 109634, 125296, 142352, 162688, 165788, 171136, 189472, 219268, 242761, 250592, 284704, 331576, 378944, 438536, 485522, 501184, 569408, 663152, 757888, 877072, 971044, 1002368, 1138816, 1326304, 1699327, 1754144, 1942088, 2652608, 3398654, 3508288, 3884176, 5305216, 6797308, 7016576, 7768352, 13594616, 15536704, 27189232, 31073408, 54378464, 108756928, 217513856]

約数ペア:

[(1, 217513856), (2, 108756928), (4, 54378464), (7, 31073408), (8, 27189232), (14, 15536704), (16, 13594616), (28, 7768352), (31, 7016576), (32, 6797308), (41, 5305216), (56, 3884176), (62, 3508288), (64, 3398654), (82, 2652608), (112, 1942088), (124, 1754144), (128, 1699327), (164, 1326304), (191, 1138816), (217, 1002368), (224, 971044), (248, 877072), (287, 757888), (328, 663152), (382, 569408), (434, 501184), (448, 485522), (496, 438536), (574, 378944), (656, 331576), (764, 284704), (868, 250592), (896, 242761), (992, 219268), (1148, 189472), (1271, 171136), (1312, 165788), (1337, 162688), (1528, 142352), (1736, 125296), (1984, 109634), (2296, 94736), (2542, 85568), (2624, 82894), (2674, 81344), (3056, 71176), (3472, 62648), (3968, 54817), (4592, 47368), (5084, 42784), (5248, 41447), (5348, 40672), (5921, 36736), (6112, 35588), (6944, 31324), (7831, 27776), (8897, 24448), (9184, 23684), (10168, 21392), (10696, 20336), (11842, 18368), (12224, 17794), (13888, 15662)]