21587534

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:288

約数の個数: 32

約数和(自身を含む): 35414400

約数和(自身を除く): 13826866

約数列:

[1, 2, 19, 38, 61, 67, 122, 134, 139, 278, 1159, 1273, 2318, 2546, 2641, 4087, 5282, 8174, 8479, 9313, 16958, 18626, 77653, 155306, 161101, 176947, 322202, 353894, 568093, 1136186, 10793767, 21587534]

約数ペア:

[(1, 21587534), (2, 10793767), (19, 1136186), (38, 568093), (61, 353894), (67, 322202), (122, 176947), (134, 161101), (139, 155306), (278, 77653), (1159, 18626), (1273, 16958), (2318, 9313), (2546, 8479), (2641, 8174), (4087, 5282)]