18788955

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{919}}^1$

素因数の和:1003

約数の個数: 32

約数和(自身を含む): 31795200

約数和(自身を除く): 13006245

約数列:

[1, 3, 5, 15, 29, 47, 87, 141, 145, 235, 435, 705, 919, 1363, 2757, 4089, 4595, 6815, 13785, 20445, 26651, 43193, 79953, 129579, 133255, 215965, 399765, 647895, 1252597, 3757791, 6262985, 18788955]

約数ペア:

[(1, 18788955), (3, 6262985), (5, 3757791), (15, 1252597), (29, 647895), (47, 399765), (87, 215965), (141, 133255), (145, 129579), (235, 79953), (435, 43193), (705, 26651), (919, 20445), (1363, 13785), (2757, 6815), (4089, 4595)]