215214921

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{271}}^1\times {\mathrm{439}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 325529600

約数和(自身を除く): 110314679

約数列:

[1, 3, 9, 27, 67, 201, 271, 439, 603, 813, 1317, 1809, 2439, 3951, 7317, 11853, 18157, 29413, 54471, 88239, 118969, 163413, 264717, 356907, 490239, 794151, 1070721, 3212163, 7970923, 23912769, 71738307, 215214921]

約数ペア:

[(1, 215214921), (3, 71738307), (9, 23912769), (27, 7970923), (67, 3212163), (201, 1070721), (271, 794151), (439, 490239), (603, 356907), (813, 264717), (1317, 163413), (1809, 118969), (2439, 88239), (3951, 54471), (7317, 29413), (11853, 18157)]