18905535

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:493

約数の個数: 64

約数和(自身を含む): 38016000

約数和(自身を除く): 19110465

約数列:

[1, 3, 5, 9, 11, 15, 27, 29, 33, 45, 55, 87, 99, 135, 145, 165, 261, 297, 319, 435, 439, 495, 783, 957, 1305, 1317, 1485, 1595, 2195, 2871, 3915, 3951, 4785, 4829, 6585, 8613, 11853, 12731, 14355, 14487, 19755, 24145, 38193, 43065, 43461, 59265, 63655, 72435, 114579, 130383, 140041, 190965, 217305, 343737, 420123, 572895, 651915, 700205, 1260369, 1718685, 2100615, 3781107, 6301845, 18905535]

約数ペア:

[(1, 18905535), (3, 6301845), (5, 3781107), (9, 2100615), (11, 1718685), (15, 1260369), (27, 700205), (29, 651915), (33, 572895), (45, 420123), (55, 343737), (87, 217305), (99, 190965), (135, 140041), (145, 130383), (165, 114579), (261, 72435), (297, 63655), (319, 59265), (435, 43461), (439, 43065), (495, 38193), (783, 24145), (957, 19755), (1305, 14487), (1317, 14355), (1485, 12731), (1595, 11853), (2195, 8613), (2871, 6585), (3915, 4829), (3951, 4785)]