21408996

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{254869}}^1$

素因数の和:254883

約数の個数: 24

約数和(自身を含む): 57090880

約数和(自身を除く): 35681884

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 254869, 509738, 764607, 1019476, 1529214, 1784083, 3058428, 3568166, 5352249, 7136332, 10704498, 21408996]

約数ペア:

[(1, 21408996), (2, 10704498), (3, 7136332), (4, 5352249), (6, 3568166), (7, 3058428), (12, 1784083), (14, 1529214), (21, 1019476), (28, 764607), (42, 509738), (84, 254869)]