21399672

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{587}}^1$

素因数の和:641

約数の個数: 96

約数和(自身を含む): 64350720

約数和(自身を除く): 42951048

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 49, 56, 62, 84, 93, 98, 124, 147, 168, 186, 196, 217, 248, 294, 372, 392, 434, 587, 588, 651, 744, 868, 1174, 1176, 1302, 1519, 1736, 1761, 2348, 2604, 3038, 3522, 4109, 4557, 4696, 5208, 6076, 7044, 8218, 9114, 12152, 12327, 14088, 16436, 18197, 18228, 24654, 28763, 32872, 36394, 36456, 49308, 54591, 57526, 72788, 86289, 98616, 109182, 115052, 127379, 145576, 172578, 218364, 230104, 254758, 345156, 382137, 436728, 509516, 690312, 764274, 891653, 1019032, 1528548, 1783306, 2674959, 3057096, 3566612, 5349918, 7133224, 10699836, 21399672]

約数ペア:

[(1, 21399672), (2, 10699836), (3, 7133224), (4, 5349918), (6, 3566612), (7, 3057096), (8, 2674959), (12, 1783306), (14, 1528548), (21, 1019032), (24, 891653), (28, 764274), (31, 690312), (42, 509516), (49, 436728), (56, 382137), (62, 345156), (84, 254758), (93, 230104), (98, 218364), (124, 172578), (147, 145576), (168, 127379), (186, 115052), (196, 109182), (217, 98616), (248, 86289), (294, 72788), (372, 57526), (392, 54591), (434, 49308), (587, 36456), (588, 36394), (651, 32872), (744, 28763), (868, 24654), (1174, 18228), (1176, 18197), (1302, 16436), (1519, 14088), (1736, 12327), (1761, 12152), (2348, 9114), (2604, 8218), (3038, 7044), (3522, 6076), (4109, 5208), (4557, 4696)]