21043360

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:246

約数の個数: 96

約数和(自身を含む): 54698112

約数和(自身を除く): 33654752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 67, 80, 104, 130, 134, 151, 160, 208, 260, 268, 302, 335, 416, 520, 536, 604, 670, 755, 871, 1040, 1072, 1208, 1340, 1510, 1742, 1963, 2080, 2144, 2416, 2680, 3020, 3484, 3926, 4355, 4832, 5360, 6040, 6968, 7852, 8710, 9815, 10117, 10720, 12080, 13936, 15704, 17420, 19630, 20234, 24160, 27872, 31408, 34840, 39260, 40468, 50585, 62816, 69680, 78520, 80936, 101170, 131521, 139360, 157040, 161872, 202340, 263042, 314080, 323744, 404680, 526084, 657605, 809360, 1052168, 1315210, 1618720, 2104336, 2630420, 4208672, 5260840, 10521680, 21043360]

約数ペア:

[(1, 21043360), (2, 10521680), (4, 5260840), (5, 4208672), (8, 2630420), (10, 2104336), (13, 1618720), (16, 1315210), (20, 1052168), (26, 809360), (32, 657605), (40, 526084), (52, 404680), (65, 323744), (67, 314080), (80, 263042), (104, 202340), (130, 161872), (134, 157040), (151, 139360), (160, 131521), (208, 101170), (260, 80936), (268, 78520), (302, 69680), (335, 62816), (416, 50585), (520, 40468), (536, 39260), (604, 34840), (670, 31408), (755, 27872), (871, 24160), (1040, 20234), (1072, 19630), (1208, 17420), (1340, 15704), (1510, 13936), (1742, 12080), (1963, 10720), (2080, 10117), (2144, 9815), (2416, 8710), (2680, 7852), (3020, 6968), (3484, 6040), (3926, 5360), (4355, 4832)]