21123616

素因数分解:

$2^5\times {\mathrm{89}}^1\times {\mathrm{7417}}^1$

素因数の和:7516

約数の個数: 24

約数和(自身を含む): 42060060

約数和(自身を除く): 20936444

約数列:

[1, 2, 4, 8, 16, 32, 89, 178, 356, 712, 1424, 2848, 7417, 14834, 29668, 59336, 118672, 237344, 660113, 1320226, 2640452, 5280904, 10561808, 21123616]

約数ペア:

[(1, 21123616), (2, 10561808), (4, 5280904), (8, 2640452), (16, 1320226), (32, 660113), (89, 237344), (178, 118672), (356, 59336), (712, 29668), (1424, 14834), (2848, 7417)]