19968508

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 42223104

約数和(自身を除く): 22254596

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 101, 161, 202, 307, 322, 404, 614, 644, 707, 1228, 1414, 2149, 2323, 2828, 4298, 4646, 7061, 8596, 9292, 14122, 16261, 28244, 31007, 32522, 49427, 62014, 65044, 98854, 124028, 197708, 217049, 434098, 713161, 868196, 1426322, 2852644, 4992127, 9984254, 19968508]

約数ペア:

[(1, 19968508), (2, 9984254), (4, 4992127), (7, 2852644), (14, 1426322), (23, 868196), (28, 713161), (46, 434098), (92, 217049), (101, 197708), (161, 124028), (202, 98854), (307, 65044), (322, 62014), (404, 49427), (614, 32522), (644, 31007), (707, 28244), (1228, 16261), (1414, 14122), (2149, 9292), (2323, 8596), (2828, 7061), (4298, 4646)]