21000932240

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1\times {\mathrm{13933}}^1$

素因数の和:14256

約数の個数: 80

約数和(自身を含む): 49636698048

約数和(自身を除く): 28635765808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 227, 332, 415, 454, 664, 830, 908, 1135, 1328, 1660, 1816, 2270, 3320, 3632, 4540, 6640, 9080, 13933, 18160, 18841, 27866, 37682, 55732, 69665, 75364, 94205, 111464, 139330, 150728, 188410, 222928, 278660, 301456, 376820, 557320, 753640, 1114640, 1156439, 1507280, 2312878, 3162791, 4625756, 5782195, 6325582, 9251512, 11564390, 12651164, 15813955, 18503024, 23128780, 25302328, 31627910, 46257560, 50604656, 63255820, 92515120, 126511640, 253023280, 262511653, 525023306, 1050046612, 1312558265, 2100093224, 2625116530, 4200186448, 5250233060, 10500466120, 21000932240]

約数ペア:

[(1, 21000932240), (2, 10500466120), (4, 5250233060), (5, 4200186448), (8, 2625116530), (10, 2100093224), (16, 1312558265), (20, 1050046612), (40, 525023306), (80, 262511653), (83, 253023280), (166, 126511640), (227, 92515120), (332, 63255820), (415, 50604656), (454, 46257560), (664, 31627910), (830, 25302328), (908, 23128780), (1135, 18503024), (1328, 15813955), (1660, 12651164), (1816, 11564390), (2270, 9251512), (3320, 6325582), (3632, 5782195), (4540, 4625756), (6640, 3162791), (9080, 2312878), (13933, 1507280), (18160, 1156439), (18841, 1114640), (27866, 753640), (37682, 557320), (55732, 376820), (69665, 301456), (75364, 278660), (94205, 222928), (111464, 188410), (139330, 150728)]