21092812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 43049440

約数和(自身を除く): 21956628

約数列:

[1, 2, 4, 13, 19, 26, 37, 38, 52, 74, 76, 148, 247, 481, 494, 577, 703, 962, 988, 1154, 1406, 1924, 2308, 2812, 7501, 9139, 10963, 15002, 18278, 21349, 21926, 30004, 36556, 42698, 43852, 85396, 142519, 277537, 285038, 405631, 555074, 570076, 811262, 1110148, 1622524, 5273203, 10546406, 21092812]

約数ペア:

[(1, 21092812), (2, 10546406), (4, 5273203), (13, 1622524), (19, 1110148), (26, 811262), (37, 570076), (38, 555074), (52, 405631), (74, 285038), (76, 277537), (148, 142519), (247, 85396), (481, 43852), (494, 42698), (577, 36556), (703, 30004), (962, 21926), (988, 21349), (1154, 18278), (1406, 15002), (1924, 10963), (2308, 9139), (2812, 7501)]