219984849

素因数分解:

$3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{19081}}^1$

素因数の和:19158

約数の個数: 32

約数和(自身を含む): 378586880

約数和(自身を除く): 158602031

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 183, 189, 427, 549, 1281, 1647, 3843, 11529, 19081, 57243, 133567, 171729, 400701, 515187, 1163941, 1202103, 3491823, 3606309, 8147587, 10475469, 24442761, 31426407, 73328283, 219984849]

約数ペア:

[(1, 219984849), (3, 73328283), (7, 31426407), (9, 24442761), (21, 10475469), (27, 8147587), (61, 3606309), (63, 3491823), (183, 1202103), (189, 1163941), (427, 515187), (549, 400701), (1281, 171729), (1647, 133567), (3843, 57243), (11529, 19081)]