19812056

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 41448120

約数和(自身を除く): 21636064

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 121, 194, 211, 242, 388, 422, 484, 776, 844, 968, 1067, 1688, 2134, 2321, 4268, 4642, 8536, 9284, 11737, 18568, 20467, 23474, 25531, 40934, 46948, 51062, 81868, 93896, 102124, 163736, 204248, 225137, 450274, 900548, 1801096, 2476507, 4953014, 9906028, 19812056]

約数ペア:

[(1, 19812056), (2, 9906028), (4, 4953014), (8, 2476507), (11, 1801096), (22, 900548), (44, 450274), (88, 225137), (97, 204248), (121, 163736), (194, 102124), (211, 93896), (242, 81868), (388, 51062), (422, 46948), (484, 40934), (776, 25531), (844, 23474), (968, 20467), (1067, 18568), (1688, 11737), (2134, 9284), (2321, 8536), (4268, 4642)]