20944815

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{541}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 35121600

約数和(自身を除く): 14176785

約数列:

[1, 3, 5, 15, 29, 87, 89, 145, 267, 435, 445, 541, 1335, 1623, 2581, 2705, 7743, 8115, 12905, 15689, 38715, 47067, 48149, 78445, 144447, 235335, 240745, 722235, 1396321, 4188963, 6981605, 20944815]

約数ペア:

[(1, 20944815), (3, 6981605), (5, 4188963), (15, 1396321), (29, 722235), (87, 240745), (89, 235335), (145, 144447), (267, 78445), (435, 48149), (445, 47067), (541, 38715), (1335, 15689), (1623, 12905), (2581, 8115), (2705, 7743)]