21491470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:170

約数の個数: 128

約数和(自身を含む): 55157760

約数和(自身を除く): 33666290

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 19, 22, 26, 35, 38, 55, 65, 70, 77, 91, 95, 110, 113, 130, 133, 143, 154, 182, 190, 209, 226, 247, 266, 286, 385, 418, 455, 494, 565, 665, 715, 770, 791, 910, 1001, 1045, 1130, 1235, 1243, 1330, 1430, 1463, 1469, 1582, 1729, 2002, 2090, 2147, 2470, 2486, 2717, 2926, 2938, 3458, 3955, 4294, 5005, 5434, 6215, 7315, 7345, 7910, 8645, 8701, 10010, 10283, 10735, 12430, 13585, 14630, 14690, 15029, 16159, 17290, 17402, 19019, 20566, 21470, 23617, 27170, 27911, 30058, 32318, 38038, 43505, 47234, 51415, 55822, 75145, 80795, 87010, 95095, 102830, 113113, 118085, 139555, 150290, 161590, 165319, 190190, 195377, 226226, 236170, 279110, 307021, 330638, 390754, 565565, 614042, 826595, 976885, 1131130, 1535105, 1653190, 1953770, 2149147, 3070210, 4298294, 10745735, 21491470]

約数ペア:

[(1, 21491470), (2, 10745735), (5, 4298294), (7, 3070210), (10, 2149147), (11, 1953770), (13, 1653190), (14, 1535105), (19, 1131130), (22, 976885), (26, 826595), (35, 614042), (38, 565565), (55, 390754), (65, 330638), (70, 307021), (77, 279110), (91, 236170), (95, 226226), (110, 195377), (113, 190190), (130, 165319), (133, 161590), (143, 150290), (154, 139555), (182, 118085), (190, 113113), (209, 102830), (226, 95095), (247, 87010), (266, 80795), (286, 75145), (385, 55822), (418, 51415), (455, 47234), (494, 43505), (565, 38038), (665, 32318), (715, 30058), (770, 27911), (791, 27170), (910, 23617), (1001, 21470), (1045, 20566), (1130, 19019), (1235, 17402), (1243, 17290), (1330, 16159), (1430, 15029), (1463, 14690), (1469, 14630), (1582, 13585), (1729, 12430), (2002, 10735), (2090, 10283), (2147, 10010), (2470, 8701), (2486, 8645), (2717, 7910), (2926, 7345), (2938, 7315), (3458, 6215), (3955, 5434), (4294, 5005)]