21158600

素因数分解:

$2^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{1579}}^1$

素因数の和:1662

約数の個数: 48

約数和(自身を含む): 49959600

約数和(自身を除く): 28801000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 134, 200, 268, 335, 536, 670, 1340, 1579, 1675, 2680, 3158, 3350, 6316, 6700, 7895, 12632, 13400, 15790, 31580, 39475, 63160, 78950, 105793, 157900, 211586, 315800, 423172, 528965, 846344, 1057930, 2115860, 2644825, 4231720, 5289650, 10579300, 21158600]

約数ペア:

[(1, 21158600), (2, 10579300), (4, 5289650), (5, 4231720), (8, 2644825), (10, 2115860), (20, 1057930), (25, 846344), (40, 528965), (50, 423172), (67, 315800), (100, 211586), (134, 157900), (200, 105793), (268, 78950), (335, 63160), (536, 39475), (670, 31580), (1340, 15790), (1579, 13400), (1675, 12632), (2680, 7895), (3158, 6700), (3350, 6316)]