21730170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:460

約数の個数: 128

約数和(自身を含む): 68014080

約数和(自身を除く): 46283910

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 23, 30, 33, 35, 42, 46, 55, 66, 69, 70, 77, 105, 110, 115, 138, 154, 161, 165, 210, 230, 231, 253, 322, 330, 345, 385, 409, 462, 483, 506, 690, 759, 770, 805, 818, 966, 1155, 1227, 1265, 1518, 1610, 1771, 2045, 2310, 2415, 2454, 2530, 2863, 3542, 3795, 4090, 4499, 4830, 5313, 5726, 6135, 7590, 8589, 8855, 8998, 9407, 10626, 12270, 13497, 14315, 17178, 17710, 18814, 22495, 26565, 26994, 28221, 28630, 31493, 42945, 44990, 47035, 53130, 56442, 62986, 65849, 67485, 85890, 94070, 94479, 103477, 131698, 134970, 141105, 157465, 188958, 197547, 206954, 282210, 310431, 314930, 329245, 395094, 472395, 517385, 620862, 658490, 724339, 944790, 987735, 1034770, 1448678, 1552155, 1975470, 2173017, 3104310, 3621695, 4346034, 7243390, 10865085, 21730170]

約数ペア:

[(1, 21730170), (2, 10865085), (3, 7243390), (5, 4346034), (6, 3621695), (7, 3104310), (10, 2173017), (11, 1975470), (14, 1552155), (15, 1448678), (21, 1034770), (22, 987735), (23, 944790), (30, 724339), (33, 658490), (35, 620862), (42, 517385), (46, 472395), (55, 395094), (66, 329245), (69, 314930), (70, 310431), (77, 282210), (105, 206954), (110, 197547), (115, 188958), (138, 157465), (154, 141105), (161, 134970), (165, 131698), (210, 103477), (230, 94479), (231, 94070), (253, 85890), (322, 67485), (330, 65849), (345, 62986), (385, 56442), (409, 53130), (462, 47035), (483, 44990), (506, 42945), (690, 31493), (759, 28630), (770, 28221), (805, 26994), (818, 26565), (966, 22495), (1155, 18814), (1227, 17710), (1265, 17178), (1518, 14315), (1610, 13497), (1771, 12270), (2045, 10626), (2310, 9407), (2415, 8998), (2454, 8855), (2530, 8589), (2863, 7590), (3542, 6135), (3795, 5726), (4090, 5313), (4499, 4830)]