19747574

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:453

約数の個数: 64

約数和(自身を含む): 41264640

約数和(自身を除く): 21517066

約数列:

[1, 2, 7, 11, 14, 17, 19, 22, 34, 38, 77, 119, 133, 154, 187, 209, 238, 266, 323, 374, 397, 418, 646, 794, 1309, 1463, 2261, 2618, 2779, 2926, 3553, 4367, 4522, 5558, 6749, 7106, 7543, 8734, 13498, 15086, 24871, 30569, 47243, 49742, 52801, 61138, 74239, 82973, 94486, 105602, 128231, 148478, 165946, 256462, 519673, 580811, 897617, 1039346, 1161622, 1410541, 1795234, 2821082, 9873787, 19747574]

約数ペア:

[(1, 19747574), (2, 9873787), (7, 2821082), (11, 1795234), (14, 1410541), (17, 1161622), (19, 1039346), (22, 897617), (34, 580811), (38, 519673), (77, 256462), (119, 165946), (133, 148478), (154, 128231), (187, 105602), (209, 94486), (238, 82973), (266, 74239), (323, 61138), (374, 52801), (397, 49742), (418, 47243), (646, 30569), (794, 24871), (1309, 15086), (1463, 13498), (2261, 8734), (2618, 7543), (2779, 7106), (2926, 6749), (3553, 5558), (4367, 4522)]