21651720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2693}}^1$

素因数の和:2774

約数の個数: 64

約数和(自身を含む): 65949120

約数和(自身を除く): 44297400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 67, 120, 134, 201, 268, 335, 402, 536, 670, 804, 1005, 1340, 1608, 2010, 2680, 2693, 4020, 5386, 8040, 8079, 10772, 13465, 16158, 21544, 26930, 32316, 40395, 53860, 64632, 80790, 107720, 161580, 180431, 323160, 360862, 541293, 721724, 902155, 1082586, 1443448, 1804310, 2165172, 2706465, 3608620, 4330344, 5412930, 7217240, 10825860, 21651720]

約数ペア:

[(1, 21651720), (2, 10825860), (3, 7217240), (4, 5412930), (5, 4330344), (6, 3608620), (8, 2706465), (10, 2165172), (12, 1804310), (15, 1443448), (20, 1082586), (24, 902155), (30, 721724), (40, 541293), (60, 360862), (67, 323160), (120, 180431), (134, 161580), (201, 107720), (268, 80790), (335, 64632), (402, 53860), (536, 40395), (670, 32316), (804, 26930), (1005, 21544), (1340, 16158), (1608, 13465), (2010, 10772), (2680, 8079), (2693, 8040), (4020, 5386)]