21394128

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1553}}^1$

素因数の和:1612

約数の個数: 80

約数和(自身を含む): 64745856

約数和(自身を除く): 43351728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 41, 42, 48, 56, 82, 84, 112, 123, 164, 168, 246, 287, 328, 336, 492, 574, 656, 861, 984, 1148, 1553, 1722, 1968, 2296, 3106, 3444, 4592, 4659, 6212, 6888, 9318, 10871, 12424, 13776, 18636, 21742, 24848, 32613, 37272, 43484, 63673, 65226, 74544, 86968, 127346, 130452, 173936, 191019, 254692, 260904, 382038, 445711, 509384, 521808, 764076, 891422, 1018768, 1337133, 1528152, 1782844, 2674266, 3056304, 3565688, 5348532, 7131376, 10697064, 21394128]

約数ペア:

[(1, 21394128), (2, 10697064), (3, 7131376), (4, 5348532), (6, 3565688), (7, 3056304), (8, 2674266), (12, 1782844), (14, 1528152), (16, 1337133), (21, 1018768), (24, 891422), (28, 764076), (41, 521808), (42, 509384), (48, 445711), (56, 382038), (82, 260904), (84, 254692), (112, 191019), (123, 173936), (164, 130452), (168, 127346), (246, 86968), (287, 74544), (328, 65226), (336, 63673), (492, 43484), (574, 37272), (656, 32613), (861, 24848), (984, 21742), (1148, 18636), (1553, 13776), (1722, 12424), (1968, 10871), (2296, 9318), (3106, 6888), (3444, 6212), (4592, 4659)]