21299976

素因数分解:

$2^3\times 3^3\times {\mathrm{31}}^1\times {\mathrm{3181}}^1$

素因数の和:3227

約数の個数: 64

約数和(自身を含む): 61094400

約数和(自身を除く): 39794424

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 31, 36, 54, 62, 72, 93, 108, 124, 186, 216, 248, 279, 372, 558, 744, 837, 1116, 1674, 2232, 3181, 3348, 6362, 6696, 9543, 12724, 19086, 25448, 28629, 38172, 57258, 76344, 85887, 98611, 114516, 171774, 197222, 229032, 295833, 343548, 394444, 591666, 687096, 788888, 887499, 1183332, 1774998, 2366664, 2662497, 3549996, 5324994, 7099992, 10649988, 21299976]

約数ペア:

[(1, 21299976), (2, 10649988), (3, 7099992), (4, 5324994), (6, 3549996), (8, 2662497), (9, 2366664), (12, 1774998), (18, 1183332), (24, 887499), (27, 788888), (31, 687096), (36, 591666), (54, 394444), (62, 343548), (72, 295833), (93, 229032), (108, 197222), (124, 171774), (186, 114516), (216, 98611), (248, 85887), (279, 76344), (372, 57258), (558, 38172), (744, 28629), (837, 25448), (1116, 19086), (1674, 12724), (2232, 9543), (3181, 6696), (3348, 6362)]