21394646

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 22150954

約数列:

[1, 2, 7, 13, 14, 19, 23, 26, 38, 46, 91, 133, 161, 182, 247, 266, 269, 299, 322, 437, 494, 538, 598, 874, 1729, 1883, 2093, 3059, 3458, 3497, 3766, 4186, 5111, 5681, 6118, 6187, 6994, 10222, 11362, 12374, 24479, 35777, 39767, 43309, 48958, 66443, 71554, 79534, 80431, 86618, 117553, 132886, 160862, 235106, 465101, 563017, 822871, 930202, 1126034, 1528189, 1645742, 3056378, 10697323, 21394646]

約数ペア:

[(1, 21394646), (2, 10697323), (7, 3056378), (13, 1645742), (14, 1528189), (19, 1126034), (23, 930202), (26, 822871), (38, 563017), (46, 465101), (91, 235106), (133, 160862), (161, 132886), (182, 117553), (247, 86618), (266, 80431), (269, 79534), (299, 71554), (322, 66443), (437, 48958), (494, 43309), (538, 39767), (598, 35777), (874, 24479), (1729, 12374), (1883, 11362), (2093, 10222), (3059, 6994), (3458, 6187), (3497, 6118), (3766, 5681), (4186, 5111)]