221679213

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11821}}^1$

素因数の和:11897

約数の個数: 32

約数和(自身を含む): 363171840

約数和(自身を除く): 141492627

約数列:

[1, 3, 7, 19, 21, 47, 57, 133, 141, 329, 399, 893, 987, 2679, 6251, 11821, 18753, 35463, 82747, 224599, 248241, 555587, 673797, 1572193, 1666761, 3889109, 4716579, 10556153, 11667327, 31668459, 73893071, 221679213]

約数ペア:

[(1, 221679213), (3, 73893071), (7, 31668459), (19, 11667327), (21, 10556153), (47, 4716579), (57, 3889109), (133, 1666761), (141, 1572193), (329, 673797), (399, 555587), (893, 248241), (987, 224599), (2679, 82747), (6251, 35463), (11821, 18753)]