21171514

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1907}}^1$

素因数の和:1990

約数の個数: 32

約数和(自身を含む): 39747456

約数和(自身を除く): 18575942

約数列:

[1, 2, 7, 13, 14, 26, 61, 91, 122, 182, 427, 793, 854, 1586, 1907, 3814, 5551, 11102, 13349, 24791, 26698, 49582, 116327, 173537, 232654, 347074, 814289, 1512251, 1628578, 3024502, 10585757, 21171514]

約数ペア:

[(1, 21171514), (2, 10585757), (7, 3024502), (13, 1628578), (14, 1512251), (26, 814289), (61, 347074), (91, 232654), (122, 173537), (182, 116327), (427, 49582), (793, 26698), (854, 24791), (1586, 13349), (1907, 11102), (3814, 5551)]