21781332

素因数分解:

$2^2\times 3^3\times {\mathrm{41}}^1\times {\mathrm{4919}}^1$

素因数の和:4973

約数の個数: 48

約数和(自身を含む): 57859200

約数和(自身を除く): 36077868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 41, 54, 82, 108, 123, 164, 246, 369, 492, 738, 1107, 1476, 2214, 4428, 4919, 9838, 14757, 19676, 29514, 44271, 59028, 88542, 132813, 177084, 201679, 265626, 403358, 531252, 605037, 806716, 1210074, 1815111, 2420148, 3630222, 5445333, 7260444, 10890666, 21781332]

約数ペア:

[(1, 21781332), (2, 10890666), (3, 7260444), (4, 5445333), (6, 3630222), (9, 2420148), (12, 1815111), (18, 1210074), (27, 806716), (36, 605037), (41, 531252), (54, 403358), (82, 265626), (108, 201679), (123, 177084), (164, 132813), (246, 88542), (369, 59028), (492, 44271), (738, 29514), (1107, 19676), (1476, 14757), (2214, 9838), (4428, 4919)]