21405134

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{1289}}^1$

素因数の和:1352

約数の個数: 24

約数和(自身を含む): 35387280

約数和(自身を除く): 13982146

約数列:

[1, 2, 19, 23, 38, 46, 361, 437, 722, 874, 1289, 2578, 8303, 16606, 24491, 29647, 48982, 59294, 465329, 563293, 930658, 1126586, 10702567, 21405134]

約数ペア:

[(1, 21405134), (2, 10702567), (19, 1126586), (23, 930658), (38, 563293), (46, 465329), (361, 59294), (437, 48982), (722, 29647), (874, 24491), (1289, 16606), (2578, 8303)]