21332766

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:553

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 31889634

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 89, 91, 178, 182, 267, 273, 439, 534, 546, 623, 878, 1157, 1246, 1317, 1869, 2314, 2634, 3073, 3471, 3738, 5707, 6146, 6942, 8099, 9219, 11414, 16198, 17121, 18438, 24297, 34242, 39071, 39949, 48594, 78142, 79898, 117213, 119847, 234426, 239694, 273497, 507923, 546994, 820491, 1015846, 1523769, 1640982, 3047538, 3555461, 7110922, 10666383, 21332766]

約数ペア:

[(1, 21332766), (2, 10666383), (3, 7110922), (6, 3555461), (7, 3047538), (13, 1640982), (14, 1523769), (21, 1015846), (26, 820491), (39, 546994), (42, 507923), (78, 273497), (89, 239694), (91, 234426), (178, 119847), (182, 117213), (267, 79898), (273, 78142), (439, 48594), (534, 39949), (546, 39071), (623, 34242), (878, 24297), (1157, 18438), (1246, 17121), (1317, 16198), (1869, 11414), (2314, 9219), (2634, 8099), (3073, 6942), (3471, 6146), (3738, 5707)]