21291600

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1613}}^1$

素因数の和:1645

約数の個数: 120

約数和(自身を含む): 74450592

約数和(自身を除く): 53158992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 33, 40, 44, 48, 50, 55, 60, 66, 75, 80, 88, 100, 110, 120, 132, 150, 165, 176, 200, 220, 240, 264, 275, 300, 330, 400, 440, 528, 550, 600, 660, 825, 880, 1100, 1200, 1320, 1613, 1650, 2200, 2640, 3226, 3300, 4400, 4839, 6452, 6600, 8065, 9678, 12904, 13200, 16130, 17743, 19356, 24195, 25808, 32260, 35486, 38712, 40325, 48390, 53229, 64520, 70972, 77424, 80650, 88715, 96780, 106458, 120975, 129040, 141944, 161300, 177430, 193560, 212916, 241950, 266145, 283888, 322600, 354860, 387120, 425832, 443575, 483900, 532290, 645200, 709720, 851664, 887150, 967800, 1064580, 1330725, 1419440, 1774300, 1935600, 2129160, 2661450, 3548600, 4258320, 5322900, 7097200, 10645800, 21291600]

約数ペア:

[(1, 21291600), (2, 10645800), (3, 7097200), (4, 5322900), (5, 4258320), (6, 3548600), (8, 2661450), (10, 2129160), (11, 1935600), (12, 1774300), (15, 1419440), (16, 1330725), (20, 1064580), (22, 967800), (24, 887150), (25, 851664), (30, 709720), (33, 645200), (40, 532290), (44, 483900), (48, 443575), (50, 425832), (55, 387120), (60, 354860), (66, 322600), (75, 283888), (80, 266145), (88, 241950), (100, 212916), (110, 193560), (120, 177430), (132, 161300), (150, 141944), (165, 129040), (176, 120975), (200, 106458), (220, 96780), (240, 88715), (264, 80650), (275, 77424), (300, 70972), (330, 64520), (400, 53229), (440, 48390), (528, 40325), (550, 38712), (600, 35486), (660, 32260), (825, 25808), (880, 24195), (1100, 19356), (1200, 17743), (1320, 16130), (1613, 13200), (1650, 12904), (2200, 9678), (2640, 8065), (3226, 6600), (3300, 6452), (4400, 4839)]