21829990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 29880410

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 35, 46, 49, 65, 70, 91, 98, 115, 130, 149, 161, 182, 230, 245, 298, 299, 322, 455, 490, 598, 637, 745, 805, 910, 1043, 1127, 1274, 1490, 1495, 1610, 1937, 2086, 2093, 2254, 2990, 3185, 3427, 3874, 4186, 5215, 5635, 6370, 6854, 7301, 9685, 10430, 10465, 11270, 13559, 14602, 14651, 17135, 19370, 20930, 23989, 27118, 29302, 34270, 36505, 44551, 47978, 67795, 73010, 73255, 89102, 94913, 119945, 135590, 146510, 167923, 189826, 222755, 239890, 311857, 335846, 445510, 474565, 623714, 839615, 949130, 1559285, 1679230, 2182999, 3118570, 4365998, 10914995, 21829990]

約数ペア:

[(1, 21829990), (2, 10914995), (5, 4365998), (7, 3118570), (10, 2182999), (13, 1679230), (14, 1559285), (23, 949130), (26, 839615), (35, 623714), (46, 474565), (49, 445510), (65, 335846), (70, 311857), (91, 239890), (98, 222755), (115, 189826), (130, 167923), (149, 146510), (161, 135590), (182, 119945), (230, 94913), (245, 89102), (298, 73255), (299, 73010), (322, 67795), (455, 47978), (490, 44551), (598, 36505), (637, 34270), (745, 29302), (805, 27118), (910, 23989), (1043, 20930), (1127, 19370), (1274, 17135), (1490, 14651), (1495, 14602), (1610, 13559), (1937, 11270), (2086, 10465), (2093, 10430), (2254, 9685), (2990, 7301), (3185, 6854), (3427, 6370), (3874, 5635), (4186, 5215)]