21020163584

素因数分解:

$2^9\times 7^1\times {\mathrm{131}}^1\times {\mathrm{44771}}^1$

素因数の和:44927

約数の個数: 80

約数和(自身を含む): 48366654336

約数和(自身を除く): 27346490752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 131, 224, 256, 262, 448, 512, 524, 896, 917, 1048, 1792, 1834, 2096, 3584, 3668, 4192, 7336, 8384, 14672, 16768, 29344, 33536, 44771, 58688, 67072, 89542, 117376, 179084, 234752, 313397, 358168, 469504, 626794, 716336, 1253588, 1432672, 2507176, 2865344, 5014352, 5730688, 5865001, 10028704, 11461376, 11730002, 20057408, 22922752, 23460004, 40114816, 41055007, 46920008, 80229632, 82110014, 93840016, 160459264, 164220028, 187680032, 328440056, 375360064, 656880112, 750720128, 1313760224, 1501440256, 2627520448, 3002880512, 5255040896, 10510081792, 21020163584]

約数ペア:

[(1, 21020163584), (2, 10510081792), (4, 5255040896), (7, 3002880512), (8, 2627520448), (14, 1501440256), (16, 1313760224), (28, 750720128), (32, 656880112), (56, 375360064), (64, 328440056), (112, 187680032), (128, 164220028), (131, 160459264), (224, 93840016), (256, 82110014), (262, 80229632), (448, 46920008), (512, 41055007), (524, 40114816), (896, 23460004), (917, 22922752), (1048, 20057408), (1792, 11730002), (1834, 11461376), (2096, 10028704), (3584, 5865001), (3668, 5730688), (4192, 5014352), (7336, 2865344), (8384, 2507176), (14672, 1432672), (16768, 1253588), (29344, 716336), (33536, 626794), (44771, 469504), (58688, 358168), (67072, 313397), (89542, 234752), (117376, 179084)]