21920115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1093}}^1$

素因数の和:1299

約数の個数: 32

約数和(自身を含む): 40329216

約数和(自身を除く): 18409101

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 573, 955, 1093, 1337, 2865, 3279, 4011, 5465, 6685, 7651, 16395, 20055, 22953, 38255, 114765, 208763, 626289, 1043815, 1461341, 3131445, 4384023, 7306705, 21920115]

約数ペア:

[(1, 21920115), (3, 7306705), (5, 4384023), (7, 3131445), (15, 1461341), (21, 1043815), (35, 626289), (105, 208763), (191, 114765), (573, 38255), (955, 22953), (1093, 20055), (1337, 16395), (2865, 7651), (3279, 6685), (4011, 5465)]