21006921195

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5857}}^1\times {\mathrm{6131}}^1$

素因数の和:12012

約数の個数: 48

約数和(自身を含む): 39226011552

約数和(自身を除く): 18219090357

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 5857, 6131, 17571, 18393, 29285, 30655, 52713, 55179, 76141, 79703, 87855, 91965, 228423, 239109, 263565, 275895, 380705, 398515, 685269, 717327, 1142115, 1195545, 3426345, 3586635, 35909267, 107727801, 179546335, 323183403, 466820471, 538639005, 1400461413, 1615917015, 2334102355, 4201384239, 7002307065, 21006921195]

約数ペア:

[(1, 21006921195), (3, 7002307065), (5, 4201384239), (9, 2334102355), (13, 1615917015), (15, 1400461413), (39, 538639005), (45, 466820471), (65, 323183403), (117, 179546335), (195, 107727801), (585, 35909267), (5857, 3586635), (6131, 3426345), (17571, 1195545), (18393, 1142115), (29285, 717327), (30655, 685269), (52713, 398515), (55179, 380705), (76141, 275895), (79703, 263565), (87855, 239109), (91965, 228423)]