21869340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4993}}^1$

素因数の和:5078

約数の個数: 48

約数和(自身を含む): 62085408

約数和(自身を除く): 40216068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 4993, 9986, 14979, 19972, 24965, 29958, 49930, 59916, 74895, 99860, 149790, 299580, 364489, 728978, 1093467, 1457956, 1822445, 2186934, 3644890, 4373868, 5467335, 7289780, 10934670, 21869340]

約数ペア:

[(1, 21869340), (2, 10934670), (3, 7289780), (4, 5467335), (5, 4373868), (6, 3644890), (10, 2186934), (12, 1822445), (15, 1457956), (20, 1093467), (30, 728978), (60, 364489), (73, 299580), (146, 149790), (219, 99860), (292, 74895), (365, 59916), (438, 49930), (730, 29958), (876, 24965), (1095, 19972), (1460, 14979), (2190, 9986), (4380, 4993)]