81037971

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 137592000

約数和(自身を除く): 56554029

約数列:

[1, 3, 7, 9, 21, 63, 89, 97, 149, 267, 291, 447, 623, 679, 801, 873, 1043, 1341, 1869, 2037, 3129, 5607, 6111, 8633, 9387, 13261, 14453, 25899, 39783, 43359, 60431, 77697, 92827, 101171, 119349, 130077, 181293, 278481, 303513, 543879, 835443, 910539, 1286317, 3858951, 9004219, 11576853, 27012657, 81037971]

約数ペア:

[(1, 81037971), (3, 27012657), (7, 11576853), (9, 9004219), (21, 3858951), (63, 1286317), (89, 910539), (97, 835443), (149, 543879), (267, 303513), (291, 278481), (447, 181293), (623, 130077), (679, 119349), (801, 101171), (873, 92827), (1043, 77697), (1341, 60431), (1869, 43359), (2037, 39783), (3129, 25899), (5607, 14453), (6111, 13261), (8633, 9387)]