20943472

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6263}}^1$

素因数の和:6301

約数の個数: 40

約数和(自身を含む): 46604160

約数和(自身を除く): 25660688

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6263, 12526, 25052, 50104, 68893, 100208, 118997, 137786, 237994, 275572, 475988, 551144, 951976, 1102288, 1308967, 1903952, 2617934, 5235868, 10471736, 20943472]

約数ペア:

[(1, 20943472), (2, 10471736), (4, 5235868), (8, 2617934), (11, 1903952), (16, 1308967), (19, 1102288), (22, 951976), (38, 551144), (44, 475988), (76, 275572), (88, 237994), (152, 137786), (176, 118997), (209, 100208), (304, 68893), (418, 50104), (836, 25052), (1672, 12526), (3344, 6263)]