21139300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 59496192

約数和(自身を除く): 38356892

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 25, 26, 28, 35, 46, 50, 52, 65, 70, 91, 92, 100, 101, 115, 130, 140, 161, 175, 182, 202, 230, 260, 299, 322, 325, 350, 364, 404, 455, 460, 505, 575, 598, 644, 650, 700, 707, 805, 910, 1010, 1150, 1196, 1300, 1313, 1414, 1495, 1610, 1820, 2020, 2093, 2275, 2300, 2323, 2525, 2626, 2828, 2990, 3220, 3535, 4025, 4186, 4550, 4646, 5050, 5252, 5980, 6565, 7070, 7475, 8050, 8372, 9100, 9191, 9292, 10100, 10465, 11615, 13130, 14140, 14950, 16100, 16261, 17675, 18382, 20930, 23230, 26260, 29900, 30199, 32522, 32825, 35350, 36764, 41860, 45955, 46460, 52325, 58075, 60398, 65044, 65650, 70700, 81305, 91910, 104650, 116150, 120796, 131300, 150995, 162610, 183820, 209300, 211393, 229775, 232300, 301990, 325220, 406525, 422786, 459550, 603980, 754975, 813050, 845572, 919100, 1056965, 1509950, 1626100, 2113930, 3019900, 4227860, 5284825, 10569650, 21139300]

約数ペア:

[(1, 21139300), (2, 10569650), (4, 5284825), (5, 4227860), (7, 3019900), (10, 2113930), (13, 1626100), (14, 1509950), (20, 1056965), (23, 919100), (25, 845572), (26, 813050), (28, 754975), (35, 603980), (46, 459550), (50, 422786), (52, 406525), (65, 325220), (70, 301990), (91, 232300), (92, 229775), (100, 211393), (101, 209300), (115, 183820), (130, 162610), (140, 150995), (161, 131300), (175, 120796), (182, 116150), (202, 104650), (230, 91910), (260, 81305), (299, 70700), (322, 65650), (325, 65044), (350, 60398), (364, 58075), (404, 52325), (455, 46460), (460, 45955), (505, 41860), (575, 36764), (598, 35350), (644, 32825), (650, 32522), (700, 30199), (707, 29900), (805, 26260), (910, 23230), (1010, 20930), (1150, 18382), (1196, 17675), (1300, 16261), (1313, 16100), (1414, 14950), (1495, 14140), (1610, 13130), (1820, 11615), (2020, 10465), (2093, 10100), (2275, 9292), (2300, 9191), (2323, 9100), (2525, 8372), (2626, 8050), (2828, 7475), (2990, 7070), (3220, 6565), (3535, 5980), (4025, 5252), (4186, 5050), (4550, 4646)]