21696180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:557

約数の個数: 96

約数和(自身を含む): 67350528

約数和(自身を除く): 45654348

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 71, 110, 132, 142, 165, 213, 220, 284, 330, 355, 426, 463, 660, 710, 781, 852, 926, 1065, 1389, 1420, 1562, 1852, 2130, 2315, 2343, 2778, 3124, 3905, 4260, 4630, 4686, 5093, 5556, 6945, 7810, 9260, 9372, 10186, 11715, 13890, 15279, 15620, 20372, 23430, 25465, 27780, 30558, 32873, 46860, 50930, 61116, 65746, 76395, 98619, 101860, 131492, 152790, 164365, 197238, 305580, 328730, 361603, 394476, 493095, 657460, 723206, 986190, 1084809, 1446412, 1808015, 1972380, 2169618, 3616030, 4339236, 5424045, 7232060, 10848090, 21696180]

約数ペア:

[(1, 21696180), (2, 10848090), (3, 7232060), (4, 5424045), (5, 4339236), (6, 3616030), (10, 2169618), (11, 1972380), (12, 1808015), (15, 1446412), (20, 1084809), (22, 986190), (30, 723206), (33, 657460), (44, 493095), (55, 394476), (60, 361603), (66, 328730), (71, 305580), (110, 197238), (132, 164365), (142, 152790), (165, 131492), (213, 101860), (220, 98619), (284, 76395), (330, 65746), (355, 61116), (426, 50930), (463, 46860), (660, 32873), (710, 30558), (781, 27780), (852, 25465), (926, 23430), (1065, 20372), (1389, 15620), (1420, 15279), (1562, 13890), (1852, 11715), (2130, 10186), (2315, 9372), (2343, 9260), (2778, 7810), (3124, 6945), (3905, 5556), (4260, 5093), (4630, 4686)]