21091050

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{919}}^1$

素因数の和:957

約数の個数: 96

約数和(自身を含む): 61603200

約数和(自身を除く): 40512150

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 25, 27, 30, 34, 45, 50, 51, 54, 75, 85, 90, 102, 135, 150, 153, 170, 225, 255, 270, 306, 425, 450, 459, 510, 675, 765, 850, 918, 919, 1275, 1350, 1530, 1838, 2295, 2550, 2757, 3825, 4590, 4595, 5514, 7650, 8271, 9190, 11475, 13785, 15623, 16542, 22950, 22975, 24813, 27570, 31246, 41355, 45950, 46869, 49626, 68925, 78115, 82710, 93738, 124065, 137850, 140607, 156230, 206775, 234345, 248130, 281214, 390575, 413550, 421821, 468690, 620325, 703035, 781150, 843642, 1171725, 1240650, 1406070, 2109105, 2343450, 3515175, 4218210, 7030350, 10545525, 21091050]

約数ペア:

[(1, 21091050), (2, 10545525), (3, 7030350), (5, 4218210), (6, 3515175), (9, 2343450), (10, 2109105), (15, 1406070), (17, 1240650), (18, 1171725), (25, 843642), (27, 781150), (30, 703035), (34, 620325), (45, 468690), (50, 421821), (51, 413550), (54, 390575), (75, 281214), (85, 248130), (90, 234345), (102, 206775), (135, 156230), (150, 140607), (153, 137850), (170, 124065), (225, 93738), (255, 82710), (270, 78115), (306, 68925), (425, 49626), (450, 46869), (459, 45950), (510, 41355), (675, 31246), (765, 27570), (850, 24813), (918, 22975), (919, 22950), (1275, 16542), (1350, 15623), (1530, 13785), (1838, 11475), (2295, 9190), (2550, 8271), (2757, 7650), (3825, 5514), (4590, 4595)]