20921758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{383}}^1$

素因数の和:600

約数の個数: 32

約数和(自身を含む): 37158912

約数和(自身を除く): 16237154

約数列:

[1, 2, 11, 13, 22, 26, 143, 191, 286, 382, 383, 766, 2101, 2483, 4202, 4213, 4966, 4979, 8426, 9958, 27313, 54626, 54769, 73153, 109538, 146306, 804683, 950989, 1609366, 1901978, 10460879, 20921758]

約数ペア:

[(1, 20921758), (2, 10460879), (11, 1901978), (13, 1609366), (22, 950989), (26, 804683), (143, 146306), (191, 109538), (286, 73153), (382, 54769), (383, 54626), (766, 27313), (2101, 9958), (2483, 8426), (4202, 4979), (4213, 4966)]