19616961

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:601

約数の個数: 32

約数和(自身を含む): 32451328

約数和(自身を除く): 12834367

約数列:

[1, 3, 7, 13, 21, 39, 91, 181, 273, 397, 543, 1191, 1267, 2353, 2779, 3801, 5161, 7059, 8337, 15483, 16471, 36127, 49413, 71857, 108381, 215571, 502999, 934141, 1508997, 2802423, 6538987, 19616961]

約数ペア:

[(1, 19616961), (3, 6538987), (7, 2802423), (13, 1508997), (21, 934141), (39, 502999), (91, 215571), (181, 108381), (273, 71857), (397, 49413), (543, 36127), (1191, 16471), (1267, 15483), (2353, 8337), (2779, 7059), (3801, 5161)]