21000608667

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{870997}}^1$

素因数の和:871072

約数の個数: 32

約数和(自身を含む): 33446323200

約数和(自身を除く): 12445714533

約数列:

[1, 3, 9, 19, 27, 47, 57, 141, 171, 423, 513, 893, 1269, 2679, 8037, 24111, 870997, 2612991, 7838973, 16548943, 23516919, 40936859, 49646829, 122810577, 148940487, 368431731, 446821461, 777800321, 1105295193, 2333400963, 7000202889, 21000608667]

約数ペア:

[(1, 21000608667), (3, 7000202889), (9, 2333400963), (19, 1105295193), (27, 777800321), (47, 446821461), (57, 368431731), (141, 148940487), (171, 122810577), (423, 49646829), (513, 40936859), (893, 23516919), (1269, 16548943), (2679, 7838973), (8037, 2612991), (24111, 870997)]