21005952

素因数分解:

$2^7\times 3^1\times {\mathrm{11}}^1\times {\mathrm{4973}}^1$

素因数の和:5001

約数の個数: 64

約数和(自身を含む): 60881760

約数和(自身を除く): 39875808

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 128, 132, 176, 192, 264, 352, 384, 528, 704, 1056, 1408, 2112, 4224, 4973, 9946, 14919, 19892, 29838, 39784, 54703, 59676, 79568, 109406, 119352, 159136, 164109, 218812, 238704, 318272, 328218, 437624, 477408, 636544, 656436, 875248, 954816, 1312872, 1750496, 1909632, 2625744, 3500992, 5251488, 7001984, 10502976, 21005952]

約数ペア:

[(1, 21005952), (2, 10502976), (3, 7001984), (4, 5251488), (6, 3500992), (8, 2625744), (11, 1909632), (12, 1750496), (16, 1312872), (22, 954816), (24, 875248), (32, 656436), (33, 636544), (44, 477408), (48, 437624), (64, 328218), (66, 318272), (88, 238704), (96, 218812), (128, 164109), (132, 159136), (176, 119352), (192, 109406), (264, 79568), (352, 59676), (384, 54703), (528, 39784), (704, 29838), (1056, 19892), (1408, 14919), (2112, 9946), (4224, 4973)]