19538649

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5387}}^1$

素因数の和:5437

約数の個数: 24

約数和(自身を含む): 31379712

約数和(自身を除く): 11841063

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 5387, 16161, 48483, 70031, 166997, 210093, 500991, 630279, 1502973, 2170961, 6512883, 19538649]

約数ペア:

[(1, 19538649), (3, 6512883), (9, 2170961), (13, 1502973), (31, 630279), (39, 500991), (93, 210093), (117, 166997), (279, 70031), (403, 48483), (1209, 16161), (3627, 5387)]