21157230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 52835328

約数和(自身を除く): 31678098

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 103, 123, 167, 205, 206, 246, 309, 334, 410, 501, 515, 615, 618, 835, 1002, 1030, 1230, 1545, 1670, 2505, 3090, 4223, 5010, 6847, 8446, 12669, 13694, 17201, 20541, 21115, 25338, 34235, 34402, 41082, 42230, 51603, 63345, 68470, 86005, 102705, 103206, 126690, 172010, 205410, 258015, 516030, 705241, 1410482, 2115723, 3526205, 4231446, 7052410, 10578615, 21157230]

約数ペア:

[(1, 21157230), (2, 10578615), (3, 7052410), (5, 4231446), (6, 3526205), (10, 2115723), (15, 1410482), (30, 705241), (41, 516030), (82, 258015), (103, 205410), (123, 172010), (167, 126690), (205, 103206), (206, 102705), (246, 86005), (309, 68470), (334, 63345), (410, 51603), (501, 42230), (515, 41082), (615, 34402), (618, 34235), (835, 25338), (1002, 21115), (1030, 20541), (1230, 17201), (1545, 13694), (1670, 12669), (2505, 8446), (3090, 6847), (4223, 5010)]