21293272

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2659}}^1$

素因数の和:2696

約数の個数: 64

約数和(自身を含む): 53625600

約数和(自身を除く): 32332328

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2659, 4004, 5318, 8008, 10636, 18613, 21272, 29249, 34567, 37226, 58498, 69134, 74452, 116996, 138268, 148904, 204743, 233992, 241969, 276536, 380237, 409486, 483938, 760474, 818972, 967876, 1520948, 1637944, 1935752, 2661659, 3041896, 5323318, 10646636, 21293272]

約数ペア:

[(1, 21293272), (2, 10646636), (4, 5323318), (7, 3041896), (8, 2661659), (11, 1935752), (13, 1637944), (14, 1520948), (22, 967876), (26, 818972), (28, 760474), (44, 483938), (52, 409486), (56, 380237), (77, 276536), (88, 241969), (91, 233992), (104, 204743), (143, 148904), (154, 138268), (182, 116996), (286, 74452), (308, 69134), (364, 58498), (572, 37226), (616, 34567), (728, 29249), (1001, 21272), (1144, 18613), (2002, 10636), (2659, 8008), (4004, 5318)]