19807203

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 29917440

約数和(自身を除く): 10110237

約数列:

[1, 3, 13, 29, 39, 83, 87, 211, 249, 377, 633, 1079, 1131, 2407, 2743, 3237, 6119, 7221, 8229, 17513, 18357, 31291, 52539, 79547, 93873, 227669, 238641, 507877, 683007, 1523631, 6602401, 19807203]

約数ペア:

[(1, 19807203), (3, 6602401), (13, 1523631), (29, 683007), (39, 507877), (83, 238641), (87, 227669), (211, 93873), (249, 79547), (377, 52539), (633, 31291), (1079, 18357), (1131, 17513), (2407, 8229), (2743, 7221), (3237, 6119)]