18907623

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 32947200

約数和(自身を除く): 14039577

約数列:

[1, 3, 7, 9, 21, 29, 63, 79, 87, 131, 203, 237, 261, 393, 553, 609, 711, 917, 1179, 1659, 1827, 2291, 2751, 3799, 4977, 6873, 8253, 10349, 11397, 16037, 20619, 26593, 31047, 34191, 48111, 72443, 79779, 93141, 144333, 217329, 239337, 300121, 651987, 900363, 2100847, 2701089, 6302541, 18907623]

約数ペア:

[(1, 18907623), (3, 6302541), (7, 2701089), (9, 2100847), (21, 900363), (29, 651987), (63, 300121), (79, 239337), (87, 217329), (131, 144333), (203, 93141), (237, 79779), (261, 72443), (393, 48111), (553, 34191), (609, 31047), (711, 26593), (917, 20619), (1179, 16037), (1659, 11397), (1827, 10349), (2291, 8253), (2751, 6873), (3799, 4977)]