20893768

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 47952000

約数和(自身を除く): 27058232

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 73, 76, 133, 146, 152, 266, 269, 292, 511, 532, 538, 584, 1022, 1064, 1076, 1387, 1883, 2044, 2152, 2774, 3766, 4088, 5111, 5548, 7532, 9709, 10222, 11096, 15064, 19418, 19637, 20444, 35777, 38836, 39274, 40888, 71554, 77672, 78548, 137459, 143108, 157096, 274918, 286216, 373103, 549836, 746206, 1099672, 1492412, 2611721, 2984824, 5223442, 10446884, 20893768]

約数ペア:

[(1, 20893768), (2, 10446884), (4, 5223442), (7, 2984824), (8, 2611721), (14, 1492412), (19, 1099672), (28, 746206), (38, 549836), (56, 373103), (73, 286216), (76, 274918), (133, 157096), (146, 143108), (152, 137459), (266, 78548), (269, 77672), (292, 71554), (511, 40888), (532, 39274), (538, 38836), (584, 35777), (1022, 20444), (1064, 19637), (1076, 19418), (1387, 15064), (1883, 11096), (2044, 10222), (2152, 9709), (2774, 7532), (3766, 5548), (4088, 5111)]