21356796

素因数分解:

$2^2\times 3^1\times {\mathrm{89}}^1\times {\mathrm{19997}}^1$

素因数の和:20093

約数の個数: 24

約数和(自身を含む): 50394960

約数和(自身を除く): 29038164

約数列:

[1, 2, 3, 4, 6, 12, 89, 178, 267, 356, 534, 1068, 19997, 39994, 59991, 79988, 119982, 239964, 1779733, 3559466, 5339199, 7118932, 10678398, 21356796]

約数ペア:

[(1, 21356796), (2, 10678398), (3, 7118932), (4, 5339199), (6, 3559466), (12, 1779733), (89, 239964), (178, 119982), (267, 79988), (356, 59991), (534, 39994), (1068, 19997)]