21201840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2677}}^1$

素因数の和:2707

約数の個数: 120

約数和(自身を含む): 77704848

約数和(自身を除く): 56503008

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 2677, 3960, 5354, 7920, 8031, 10708, 13385, 16062, 21416, 24093, 26770, 29447, 32124, 40155, 42832, 48186, 53540, 58894, 64248, 80310, 88341, 96372, 107080, 117788, 120465, 128496, 147235, 160620, 176682, 192744, 214160, 235576, 240930, 265023, 294470, 321240, 353364, 385488, 441705, 471152, 481860, 530046, 588940, 642480, 706728, 883410, 963720, 1060092, 1177880, 1325115, 1413456, 1766820, 1927440, 2120184, 2355760, 2650230, 3533640, 4240368, 5300460, 7067280, 10600920, 21201840]

約数ペア:

[(1, 21201840), (2, 10600920), (3, 7067280), (4, 5300460), (5, 4240368), (6, 3533640), (8, 2650230), (9, 2355760), (10, 2120184), (11, 1927440), (12, 1766820), (15, 1413456), (16, 1325115), (18, 1177880), (20, 1060092), (22, 963720), (24, 883410), (30, 706728), (33, 642480), (36, 588940), (40, 530046), (44, 481860), (45, 471152), (48, 441705), (55, 385488), (60, 353364), (66, 321240), (72, 294470), (80, 265023), (88, 240930), (90, 235576), (99, 214160), (110, 192744), (120, 176682), (132, 160620), (144, 147235), (165, 128496), (176, 120465), (180, 117788), (198, 107080), (220, 96372), (240, 88341), (264, 80310), (330, 64248), (360, 58894), (396, 53540), (440, 48186), (495, 42832), (528, 40155), (660, 32124), (720, 29447), (792, 26770), (880, 24093), (990, 21416), (1320, 16062), (1584, 13385), (1980, 10708), (2640, 8031), (2677, 7920), (3960, 5354)]