21741148

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 23417252

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 191, 199, 286, 382, 398, 572, 764, 796, 2101, 2189, 2483, 2587, 4202, 4378, 4966, 5174, 8404, 8756, 9932, 10348, 27313, 28457, 38009, 54626, 56914, 76018, 109252, 113828, 152036, 418099, 494117, 836198, 988234, 1672396, 1976468, 5435287, 10870574, 21741148]

約数ペア:

[(1, 21741148), (2, 10870574), (4, 5435287), (11, 1976468), (13, 1672396), (22, 988234), (26, 836198), (44, 494117), (52, 418099), (143, 152036), (191, 113828), (199, 109252), (286, 76018), (382, 56914), (398, 54626), (572, 38009), (764, 28457), (796, 27313), (2101, 10348), (2189, 9932), (2483, 8756), (2587, 8404), (4202, 5174), (4378, 4966)]