21035880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{823}}^1$

素因数の和:911

約数の個数: 96

約数和(自身を含む): 69413760

約数和(自身を除く): 48377880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 823, 852, 1065, 1278, 1420, 1646, 1704, 2130, 2469, 2556, 2840, 3195, 3292, 4115, 4260, 4938, 5112, 6390, 6584, 7407, 8230, 8520, 9876, 12345, 12780, 14814, 16460, 19752, 24690, 25560, 29628, 32920, 37035, 49380, 58433, 59256, 74070, 98760, 116866, 148140, 175299, 233732, 292165, 296280, 350598, 467464, 525897, 584330, 701196, 876495, 1051794, 1168660, 1402392, 1752990, 2103588, 2337320, 2629485, 3505980, 4207176, 5258970, 7011960, 10517940, 21035880]

約数ペア:

[(1, 21035880), (2, 10517940), (3, 7011960), (4, 5258970), (5, 4207176), (6, 3505980), (8, 2629485), (9, 2337320), (10, 2103588), (12, 1752990), (15, 1402392), (18, 1168660), (20, 1051794), (24, 876495), (30, 701196), (36, 584330), (40, 525897), (45, 467464), (60, 350598), (71, 296280), (72, 292165), (90, 233732), (120, 175299), (142, 148140), (180, 116866), (213, 98760), (284, 74070), (355, 59256), (360, 58433), (426, 49380), (568, 37035), (639, 32920), (710, 29628), (823, 25560), (852, 24690), (1065, 19752), (1278, 16460), (1420, 14814), (1646, 12780), (1704, 12345), (2130, 9876), (2469, 8520), (2556, 8230), (2840, 7407), (3195, 6584), (3292, 6390), (4115, 5112), (4260, 4938)]