19876948

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 45246600

約数和(自身を除く): 25369652

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 49, 52, 58, 91, 98, 116, 182, 196, 203, 269, 364, 377, 406, 538, 637, 754, 812, 1076, 1274, 1421, 1508, 1883, 2548, 2639, 2842, 3497, 3766, 5278, 5684, 6994, 7532, 7801, 10556, 13181, 13988, 15602, 18473, 24479, 26362, 31204, 36946, 48958, 52724, 54607, 73892, 97916, 101413, 109214, 171353, 202826, 218428, 342706, 382249, 405652, 685412, 709891, 764498, 1419782, 1528996, 2839564, 4969237, 9938474, 19876948]

約数ペア:

[(1, 19876948), (2, 9938474), (4, 4969237), (7, 2839564), (13, 1528996), (14, 1419782), (26, 764498), (28, 709891), (29, 685412), (49, 405652), (52, 382249), (58, 342706), (91, 218428), (98, 202826), (116, 171353), (182, 109214), (196, 101413), (203, 97916), (269, 73892), (364, 54607), (377, 52724), (406, 48958), (538, 36946), (637, 31204), (754, 26362), (812, 24479), (1076, 18473), (1274, 15602), (1421, 13988), (1508, 13181), (1883, 10556), (2548, 7801), (2639, 7532), (2842, 6994), (3497, 5684), (3766, 5278)]