21432855

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{479}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 36403200

約数和(自身を除く): 14970345

約数列:

[1, 3, 5, 15, 19, 57, 95, 157, 285, 471, 479, 785, 1437, 2355, 2395, 2983, 7185, 8949, 9101, 14915, 27303, 44745, 45505, 75203, 136515, 225609, 376015, 1128045, 1428857, 4286571, 7144285, 21432855]

約数ペア:

[(1, 21432855), (3, 7144285), (5, 4286571), (15, 1428857), (19, 1128045), (57, 376015), (95, 225609), (157, 136515), (285, 75203), (471, 45505), (479, 44745), (785, 27303), (1437, 14915), (2355, 9101), (2395, 8949), (2983, 7185)]