21456201

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 32497920

約数和(自身を除く): 11041719

約数列:

[1, 3, 13, 29, 39, 61, 87, 183, 311, 377, 793, 933, 1131, 1769, 2379, 4043, 5307, 9019, 12129, 18971, 22997, 27057, 56913, 68991, 117247, 246623, 351741, 550159, 739869, 1650477, 7152067, 21456201]

約数ペア:

[(1, 21456201), (3, 7152067), (13, 1650477), (29, 739869), (39, 550159), (61, 351741), (87, 246623), (183, 117247), (311, 68991), (377, 56913), (793, 27057), (933, 22997), (1131, 18971), (1769, 12129), (2379, 9019), (4043, 5307)]