211213912

素因数分解:

$2^3\times 7^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:262

約数の個数: 128

約数和(自身を含む): 516096000

約数和(自身を除く): 304882088

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 49, 52, 56, 62, 91, 98, 104, 124, 182, 191, 196, 217, 248, 343, 364, 382, 392, 403, 434, 637, 686, 728, 764, 806, 868, 1274, 1337, 1372, 1519, 1528, 1612, 1736, 2483, 2548, 2674, 2744, 2821, 3038, 3224, 4459, 4966, 5096, 5348, 5642, 5921, 6076, 8918, 9359, 9932, 10633, 10696, 11284, 11842, 12152, 17381, 17836, 18718, 19747, 19864, 21266, 22568, 23684, 34762, 35672, 37436, 39494, 41447, 42532, 47368, 65513, 69524, 74872, 76973, 78988, 82894, 85064, 121667, 131026, 138229, 139048, 153946, 157976, 165788, 243334, 262052, 276458, 290129, 307892, 331576, 486668, 524104, 538811, 552916, 580258, 615784, 851669, 973336, 1077622, 1105832, 1160516, 1703338, 2030903, 2155244, 2321032, 3406676, 3771677, 4061806, 4310488, 6813352, 7543354, 8123612, 15086708, 16247224, 26401739, 30173416, 52803478, 105606956, 211213912]

約数ペア:

[(1, 211213912), (2, 105606956), (4, 52803478), (7, 30173416), (8, 26401739), (13, 16247224), (14, 15086708), (26, 8123612), (28, 7543354), (31, 6813352), (49, 4310488), (52, 4061806), (56, 3771677), (62, 3406676), (91, 2321032), (98, 2155244), (104, 2030903), (124, 1703338), (182, 1160516), (191, 1105832), (196, 1077622), (217, 973336), (248, 851669), (343, 615784), (364, 580258), (382, 552916), (392, 538811), (403, 524104), (434, 486668), (637, 331576), (686, 307892), (728, 290129), (764, 276458), (806, 262052), (868, 243334), (1274, 165788), (1337, 157976), (1372, 153946), (1519, 139048), (1528, 138229), (1612, 131026), (1736, 121667), (2483, 85064), (2548, 82894), (2674, 78988), (2744, 76973), (2821, 74872), (3038, 69524), (3224, 65513), (4459, 47368), (4966, 42532), (5096, 41447), (5348, 39494), (5642, 37436), (5921, 35672), (6076, 34762), (8918, 23684), (9359, 22568), (9932, 21266), (10633, 19864), (10696, 19747), (11284, 18718), (11842, 17836), (12152, 17381)]