21722120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3373}}^1$

素因数の和:3414

約数の個数: 64

約数和(自身を含む): 58302720

約数和(自身を除く): 36580600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 3373, 6440, 6746, 13492, 16865, 23611, 26984, 33730, 47222, 67460, 77579, 94444, 118055, 134920, 155158, 188888, 236110, 310316, 387895, 472220, 543053, 620632, 775790, 944440, 1086106, 1551580, 2172212, 2715265, 3103160, 4344424, 5430530, 10861060, 21722120]

約数ペア:

[(1, 21722120), (2, 10861060), (4, 5430530), (5, 4344424), (7, 3103160), (8, 2715265), (10, 2172212), (14, 1551580), (20, 1086106), (23, 944440), (28, 775790), (35, 620632), (40, 543053), (46, 472220), (56, 387895), (70, 310316), (92, 236110), (115, 188888), (140, 155158), (161, 134920), (184, 118055), (230, 94444), (280, 77579), (322, 67460), (460, 47222), (644, 33730), (805, 26984), (920, 23611), (1288, 16865), (1610, 13492), (3220, 6746), (3373, 6440)]