19945478

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{449}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 16342522

約数列:

[1, 2, 7, 14, 19, 38, 133, 167, 266, 334, 449, 898, 1169, 2338, 3143, 3173, 6286, 6346, 8531, 17062, 22211, 44422, 59717, 74983, 119434, 149966, 524881, 1049762, 1424677, 2849354, 9972739, 19945478]

約数ペア:

[(1, 19945478), (2, 9972739), (7, 2849354), (14, 1424677), (19, 1049762), (38, 524881), (133, 149966), (167, 119434), (266, 74983), (334, 59717), (449, 44422), (898, 22211), (1169, 17062), (2338, 8531), (3143, 6346), (3173, 6286)]