21023928

素因数分解:

$2^3\times 3^3\times {\mathrm{131}}^1\times {\mathrm{743}}^1$

素因数の和:889

約数の個数: 64

約数和(自身を含む): 58924800

約数和(自身を除く): 37900872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 131, 216, 262, 393, 524, 743, 786, 1048, 1179, 1486, 1572, 2229, 2358, 2972, 3144, 3537, 4458, 4716, 5944, 6687, 7074, 8916, 9432, 13374, 14148, 17832, 20061, 26748, 28296, 40122, 53496, 80244, 97333, 160488, 194666, 291999, 389332, 583998, 778664, 875997, 1167996, 1751994, 2335992, 2627991, 3503988, 5255982, 7007976, 10511964, 21023928]

約数ペア:

[(1, 21023928), (2, 10511964), (3, 7007976), (4, 5255982), (6, 3503988), (8, 2627991), (9, 2335992), (12, 1751994), (18, 1167996), (24, 875997), (27, 778664), (36, 583998), (54, 389332), (72, 291999), (108, 194666), (131, 160488), (216, 97333), (262, 80244), (393, 53496), (524, 40122), (743, 28296), (786, 26748), (1048, 20061), (1179, 17832), (1486, 14148), (1572, 13374), (2229, 9432), (2358, 8916), (2972, 7074), (3144, 6687), (3537, 5944), (4458, 4716)]