21442659

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 34997760

約数和(自身を除く): 13555101

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 881, 1159, 1281, 2643, 3477, 6167, 8113, 16739, 18501, 24339, 50217, 53741, 117173, 161223, 351519, 376187, 1021079, 1128561, 3063237, 7147553, 21442659]

約数ペア:

[(1, 21442659), (3, 7147553), (7, 3063237), (19, 1128561), (21, 1021079), (57, 376187), (61, 351519), (133, 161223), (183, 117173), (399, 53741), (427, 50217), (881, 24339), (1159, 18501), (1281, 16739), (2643, 8113), (3477, 6167)]