21852885

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 14273835

約数列:

[1, 3, 5, 15, 47, 139, 141, 223, 235, 417, 669, 695, 705, 1115, 2085, 3345, 6533, 10481, 19599, 30997, 31443, 32665, 52405, 92991, 97995, 154985, 157215, 464955, 1456859, 4370577, 7284295, 21852885]

約数ペア:

[(1, 21852885), (3, 7284295), (5, 4370577), (15, 1456859), (47, 464955), (139, 157215), (141, 154985), (223, 97995), (235, 92991), (417, 52405), (669, 32665), (695, 31443), (705, 30997), (1115, 19599), (2085, 10481), (3345, 6533)]