15988329

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^3\times {\mathrm{37}}^1$

素因数の和:107

約数の個数: 48

約数和(自身を含む): 28612480

約数和(自身を除く): 12624151

約数列:

[1, 3, 7, 9, 19, 21, 37, 57, 63, 111, 133, 171, 259, 333, 361, 399, 703, 777, 1083, 1197, 2109, 2331, 2527, 3249, 4921, 6327, 6859, 7581, 13357, 14763, 20577, 22743, 40071, 44289, 48013, 61731, 93499, 120213, 144039, 253783, 280497, 432117, 761349, 841491, 1776481, 2284047, 5329443, 15988329]

約数ペア:

[(1, 15988329), (3, 5329443), (7, 2284047), (9, 1776481), (19, 841491), (21, 761349), (37, 432117), (57, 280497), (63, 253783), (111, 144039), (133, 120213), (171, 93499), (259, 61731), (333, 48013), (361, 44289), (399, 40071), (703, 22743), (777, 20577), (1083, 14763), (1197, 13357), (2109, 7581), (2331, 6859), (2527, 6327), (3249, 4921)]