21499506

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{18959}}^1$

素因数の和:18980

約数の個数: 40

約数和(自身を含む): 55059840

約数和(自身を除く): 33560334

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 18959, 37918, 56877, 113754, 132713, 170631, 265426, 341262, 398139, 511893, 796278, 1023786, 1194417, 1535679, 2388834, 3071358, 3583251, 7166502, 10749753, 21499506]

約数ペア:

[(1, 21499506), (2, 10749753), (3, 7166502), (6, 3583251), (7, 3071358), (9, 2388834), (14, 1535679), (18, 1194417), (21, 1023786), (27, 796278), (42, 511893), (54, 398139), (63, 341262), (81, 265426), (126, 170631), (162, 132713), (189, 113754), (378, 56877), (567, 37918), (1134, 18959)]