21752835

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8581}}^1$

素因数の和:8615

約数の個数: 24

約数和(自身を含む): 37692144

約数和(自身を除く): 15939309

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 8581, 25743, 42905, 111553, 128715, 334659, 557765, 1450189, 1673295, 4350567, 7250945, 21752835]

約数ペア:

[(1, 21752835), (3, 7250945), (5, 4350567), (13, 1673295), (15, 1450189), (39, 557765), (65, 334659), (169, 128715), (195, 111553), (507, 42905), (845, 25743), (2535, 8581)]