20676705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1031}}^1$

素因数の和:1237

約数の個数: 32

約数和(自身を含む): 38043648

約数和(自身を除く): 17366943

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 573, 955, 1031, 1337, 2865, 3093, 4011, 5155, 6685, 7217, 15465, 20055, 21651, 36085, 108255, 196921, 590763, 984605, 1378447, 2953815, 4135341, 6892235, 20676705]

約数ペア:

[(1, 20676705), (3, 6892235), (5, 4135341), (7, 2953815), (15, 1378447), (21, 984605), (35, 590763), (105, 196921), (191, 108255), (573, 36085), (955, 21651), (1031, 20055), (1337, 15465), (2865, 7217), (3093, 6685), (4011, 5155)]