21690350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{349}}^1$

素因数の和:485

約数の個数: 48

約数和(自身を含む): 44528400

約数和(自身を除く): 22838050

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 113, 226, 275, 349, 550, 565, 698, 1130, 1243, 1745, 2486, 2825, 3490, 3839, 5650, 6215, 7678, 8725, 12430, 17450, 19195, 31075, 38390, 39437, 62150, 78874, 95975, 191950, 197185, 394370, 433807, 867614, 985925, 1971850, 2169035, 4338070, 10845175, 21690350]

約数ペア:

[(1, 21690350), (2, 10845175), (5, 4338070), (10, 2169035), (11, 1971850), (22, 985925), (25, 867614), (50, 433807), (55, 394370), (110, 197185), (113, 191950), (226, 95975), (275, 78874), (349, 62150), (550, 39437), (565, 38390), (698, 31075), (1130, 19195), (1243, 17450), (1745, 12430), (2486, 8725), (2825, 7678), (3490, 6215), (3839, 5650)]