21919500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4871}}^1$

素因数の和:4896

約数の個数: 72

約数和(自身を含む): 69162912

約数和(自身を除く): 47243412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4871, 9742, 14613, 19484, 24355, 29226, 43839, 48710, 58452, 73065, 87678, 97420, 121775, 146130, 175356, 219195, 243550, 292260, 365325, 438390, 487100, 608875, 730650, 876780, 1095975, 1217750, 1461300, 1826625, 2191950, 2435500, 3653250, 4383900, 5479875, 7306500, 10959750, 21919500]

約数ペア:

[(1, 21919500), (2, 10959750), (3, 7306500), (4, 5479875), (5, 4383900), (6, 3653250), (9, 2435500), (10, 2191950), (12, 1826625), (15, 1461300), (18, 1217750), (20, 1095975), (25, 876780), (30, 730650), (36, 608875), (45, 487100), (50, 438390), (60, 365325), (75, 292260), (90, 243550), (100, 219195), (125, 175356), (150, 146130), (180, 121775), (225, 97420), (250, 87678), (300, 73065), (375, 58452), (450, 48710), (500, 43839), (750, 29226), (900, 24355), (1125, 19484), (1500, 14613), (2250, 9742), (4500, 4871)]