21000969834

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4413823}}^1$

素因数の和:4413902

約数の個数: 32

約数和(自身を含む): 45974390784

約数和(自身を除く): 24973420950

約数列:

[1, 2, 3, 6, 13, 26, 39, 61, 78, 122, 183, 366, 793, 1586, 2379, 4758, 4413823, 8827646, 13241469, 26482938, 57379699, 114759398, 172139097, 269243203, 344278194, 538486406, 807729609, 1615459218, 3500161639, 7000323278, 10500484917, 21000969834]

約数ペア:

[(1, 21000969834), (2, 10500484917), (3, 7000323278), (6, 3500161639), (13, 1615459218), (26, 807729609), (39, 538486406), (61, 344278194), (78, 269243203), (122, 172139097), (183, 114759398), (366, 57379699), (793, 26482938), (1586, 13241469), (2379, 8827646), (4758, 4413823)]