21159770

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{467}}^1$

素因数の和:694

約数の個数: 32

約数和(自身を含む): 40030848

約数和(自身を除く): 18871078

約数列:

[1, 2, 5, 10, 23, 46, 115, 197, 230, 394, 467, 934, 985, 1970, 2335, 4531, 4670, 9062, 10741, 21482, 22655, 45310, 53705, 91999, 107410, 183998, 459995, 919990, 2115977, 4231954, 10579885, 21159770]

約数ペア:

[(1, 21159770), (2, 10579885), (5, 4231954), (10, 2115977), (23, 919990), (46, 459995), (115, 183998), (197, 107410), (230, 91999), (394, 53705), (467, 45310), (934, 22655), (985, 21482), (1970, 10741), (2335, 9062), (4531, 4670)]