21400050

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:340

約数の個数: 96

約数和(自身を含む): 61603200

約数和(自身を除く): 40203150

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 89, 105, 150, 175, 178, 210, 229, 267, 350, 445, 458, 525, 534, 623, 687, 890, 1050, 1145, 1246, 1335, 1374, 1603, 1869, 2225, 2290, 2670, 3115, 3206, 3435, 3738, 4450, 4809, 5725, 6230, 6675, 6870, 8015, 9345, 9618, 11450, 13350, 15575, 16030, 17175, 18690, 20381, 24045, 31150, 34350, 40075, 40762, 46725, 48090, 61143, 80150, 93450, 101905, 120225, 122286, 142667, 203810, 240450, 285334, 305715, 428001, 509525, 611430, 713335, 856002, 1019050, 1426670, 1528575, 2140005, 3057150, 3566675, 4280010, 7133350, 10700025, 21400050]

約数ペア:

[(1, 21400050), (2, 10700025), (3, 7133350), (5, 4280010), (6, 3566675), (7, 3057150), (10, 2140005), (14, 1528575), (15, 1426670), (21, 1019050), (25, 856002), (30, 713335), (35, 611430), (42, 509525), (50, 428001), (70, 305715), (75, 285334), (89, 240450), (105, 203810), (150, 142667), (175, 122286), (178, 120225), (210, 101905), (229, 93450), (267, 80150), (350, 61143), (445, 48090), (458, 46725), (525, 40762), (534, 40075), (623, 34350), (687, 31150), (890, 24045), (1050, 20381), (1145, 18690), (1246, 17175), (1335, 16030), (1374, 15575), (1603, 13350), (1869, 11450), (2225, 9618), (2290, 9345), (2670, 8015), (3115, 6870), (3206, 6675), (3435, 6230), (3738, 5725), (4450, 4809)]