18993405

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{929}}^1$

素因数の和:1013

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 13147395

約数列:

[1, 3, 5, 15, 29, 47, 87, 141, 145, 235, 435, 705, 929, 1363, 2787, 4089, 4645, 6815, 13935, 20445, 26941, 43663, 80823, 130989, 134705, 218315, 404115, 654945, 1266227, 3798681, 6331135, 18993405]

約数ペア:

[(1, 18993405), (3, 6331135), (5, 3798681), (15, 1266227), (29, 654945), (47, 404115), (87, 218315), (141, 134705), (145, 130989), (235, 80823), (435, 43663), (705, 26941), (929, 20445), (1363, 13935), (2787, 6815), (4089, 4645)]