20953755

素因数分解:

$3^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{577}}^1$

素因数の和:860

約数の個数: 32

約数和(自身を含む): 37454400

約数和(自身を除く): 16500645

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 269, 577, 807, 1345, 1731, 2421, 2885, 4035, 5193, 7263, 8655, 12105, 15579, 25965, 36315, 77895, 155213, 465639, 776065, 1396917, 2328195, 4190751, 6984585, 20953755]

約数ペア:

[(1, 20953755), (3, 6984585), (5, 4190751), (9, 2328195), (15, 1396917), (27, 776065), (45, 465639), (135, 155213), (269, 77895), (577, 36315), (807, 25965), (1345, 15579), (1731, 12105), (2421, 8655), (2885, 7263), (4035, 5193)]