21247800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{5059}}^1$

素因数の和:5085

約数の個数: 96

約数和(自身を含む): 75292800

約数和(自身を除く): 54045000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 140, 150, 168, 175, 200, 210, 280, 300, 350, 420, 525, 600, 700, 840, 1050, 1400, 2100, 4200, 5059, 10118, 15177, 20236, 25295, 30354, 35413, 40472, 50590, 60708, 70826, 75885, 101180, 106239, 121416, 126475, 141652, 151770, 177065, 202360, 212478, 252950, 283304, 303540, 354130, 379425, 424956, 505900, 531195, 607080, 708260, 758850, 849912, 885325, 1011800, 1062390, 1416520, 1517700, 1770650, 2124780, 2655975, 3035400, 3541300, 4249560, 5311950, 7082600, 10623900, 21247800]

約数ペア:

[(1, 21247800), (2, 10623900), (3, 7082600), (4, 5311950), (5, 4249560), (6, 3541300), (7, 3035400), (8, 2655975), (10, 2124780), (12, 1770650), (14, 1517700), (15, 1416520), (20, 1062390), (21, 1011800), (24, 885325), (25, 849912), (28, 758850), (30, 708260), (35, 607080), (40, 531195), (42, 505900), (50, 424956), (56, 379425), (60, 354130), (70, 303540), (75, 283304), (84, 252950), (100, 212478), (105, 202360), (120, 177065), (140, 151770), (150, 141652), (168, 126475), (175, 121416), (200, 106239), (210, 101180), (280, 75885), (300, 70826), (350, 60708), (420, 50590), (525, 40472), (600, 35413), (700, 30354), (840, 25295), (1050, 20236), (1400, 15177), (2100, 10118), (4200, 5059)]