21479865

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^2$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 17892615

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 67, 87, 145, 165, 201, 319, 335, 435, 737, 957, 1005, 1595, 1943, 2211, 3685, 4489, 4785, 5829, 9715, 11055, 13467, 21373, 22445, 29145, 49379, 64119, 67335, 106865, 130181, 148137, 246895, 320595, 390543, 650905, 740685, 1431991, 1952715, 4295973, 7159955, 21479865]

約数ペア:

[(1, 21479865), (3, 7159955), (5, 4295973), (11, 1952715), (15, 1431991), (29, 740685), (33, 650905), (55, 390543), (67, 320595), (87, 246895), (145, 148137), (165, 130181), (201, 106865), (319, 67335), (335, 64119), (435, 49379), (737, 29145), (957, 22445), (1005, 21373), (1595, 13467), (1943, 11055), (2211, 9715), (3685, 5829), (4489, 4785)]