21798165

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1171}}^1$

素因数の和:1269

約数の個数: 32

約数和(自身を含む): 37466496

約数和(自身を除く): 15668331

約数列:

[1, 3, 5, 15, 17, 51, 73, 85, 219, 255, 365, 1095, 1171, 1241, 3513, 3723, 5855, 6205, 17565, 18615, 19907, 59721, 85483, 99535, 256449, 298605, 427415, 1282245, 1453211, 4359633, 7266055, 21798165]

約数ペア:

[(1, 21798165), (3, 7266055), (5, 4359633), (15, 1453211), (17, 1282245), (51, 427415), (73, 298605), (85, 256449), (219, 99535), (255, 85483), (365, 59721), (1095, 19907), (1171, 18615), (1241, 17565), (3513, 6205), (3723, 5855)]