261516003

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{7417}}^1$

素因数の和:7523

約数の個数: 32

約数和(自身を含む): 421579776

約数和(自身を除く): 160063773

約数列:

[1, 3, 7, 21, 23, 69, 73, 161, 219, 483, 511, 1533, 1679, 5037, 7417, 11753, 22251, 35259, 51919, 155757, 170591, 511773, 541441, 1194137, 1624323, 3582411, 3790087, 11370261, 12453143, 37359429, 87172001, 261516003]

約数ペア:

[(1, 261516003), (3, 87172001), (7, 37359429), (21, 12453143), (23, 11370261), (69, 3790087), (73, 3582411), (161, 1624323), (219, 1194137), (483, 541441), (511, 511773), (1533, 170591), (1679, 155757), (5037, 51919), (7417, 35259), (11753, 22251)]