21000923125

素因数分解:

$5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{369247}}^1$

素因数の和:369287

約数の個数: 40

約数和(自身を含む): 32298861056

約数和(自身を除く): 11297937931

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 125, 175, 325, 455, 625, 875, 1625, 2275, 4375, 8125, 11375, 56875, 369247, 1846235, 2584729, 4800211, 9231175, 12923645, 24001055, 33601477, 46155875, 64618225, 120005275, 168007385, 230779375, 323091125, 600026375, 840036925, 1615455625, 3000131875, 4200184625, 21000923125]

約数ペア:

[(1, 21000923125), (5, 4200184625), (7, 3000131875), (13, 1615455625), (25, 840036925), (35, 600026375), (65, 323091125), (91, 230779375), (125, 168007385), (175, 120005275), (325, 64618225), (455, 46155875), (625, 33601477), (875, 24001055), (1625, 12923645), (2275, 9231175), (4375, 4800211), (8125, 2584729), (11375, 1846235), (56875, 369247)]