21431354

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 20593606

約数列:

[1, 2, 7, 14, 19, 23, 31, 38, 46, 62, 113, 133, 161, 217, 226, 266, 322, 434, 437, 589, 713, 791, 874, 1178, 1426, 1582, 2147, 2599, 3059, 3503, 4123, 4294, 4991, 5198, 6118, 7006, 8246, 9982, 13547, 15029, 18193, 24521, 27094, 30058, 36386, 49042, 49381, 66557, 80569, 94829, 98762, 133114, 161138, 189658, 345667, 465899, 563983, 691334, 931798, 1127966, 1530811, 3061622, 10715677, 21431354]

約数ペア:

[(1, 21431354), (2, 10715677), (7, 3061622), (14, 1530811), (19, 1127966), (23, 931798), (31, 691334), (38, 563983), (46, 465899), (62, 345667), (113, 189658), (133, 161138), (161, 133114), (217, 98762), (226, 94829), (266, 80569), (322, 66557), (434, 49381), (437, 49042), (589, 36386), (713, 30058), (791, 27094), (874, 24521), (1178, 18193), (1426, 15029), (1582, 13547), (2147, 9982), (2599, 8246), (3059, 7006), (3503, 6118), (4123, 5198), (4294, 4991)]