20837145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1039}}^1$

素因数の和:1245

約数の個数: 32

約数和(自身を含む): 38338560

約数和(自身を除く): 17501415

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 573, 955, 1039, 1337, 2865, 3117, 4011, 5195, 6685, 7273, 15585, 20055, 21819, 36365, 109095, 198449, 595347, 992245, 1389143, 2976735, 4167429, 6945715, 20837145]

約数ペア:

[(1, 20837145), (3, 6945715), (5, 4167429), (7, 2976735), (15, 1389143), (21, 992245), (35, 595347), (105, 198449), (191, 109095), (573, 36365), (955, 21819), (1039, 20055), (1337, 15585), (2865, 7273), (3117, 6685), (4011, 5195)]