19685848

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3863}}^1$

素因数の和:3896

約数の個数: 48

約数和(自身を含む): 46252080

約数和(自身を除く): 26566232

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 3863, 5096, 7726, 15452, 27041, 30904, 50219, 54082, 100438, 108164, 189287, 200876, 216328, 351533, 378574, 401752, 703066, 757148, 1406132, 1514296, 2460731, 2812264, 4921462, 9842924, 19685848]

約数ペア:

[(1, 19685848), (2, 9842924), (4, 4921462), (7, 2812264), (8, 2460731), (13, 1514296), (14, 1406132), (26, 757148), (28, 703066), (49, 401752), (52, 378574), (56, 351533), (91, 216328), (98, 200876), (104, 189287), (182, 108164), (196, 100438), (364, 54082), (392, 50219), (637, 30904), (728, 27041), (1274, 15452), (2548, 7726), (3863, 5096)]