20962972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 40727232

約数和(自身を除く): 19764260

約数列:

[1, 2, 4, 17, 34, 41, 68, 73, 82, 103, 146, 164, 206, 292, 412, 697, 1241, 1394, 1751, 2482, 2788, 2993, 3502, 4223, 4964, 5986, 7004, 7519, 8446, 11972, 15038, 16892, 30076, 50881, 71791, 101762, 127823, 143582, 203524, 255646, 287164, 308279, 511292, 616558, 1233116, 5240743, 10481486, 20962972]

約数ペア:

[(1, 20962972), (2, 10481486), (4, 5240743), (17, 1233116), (34, 616558), (41, 511292), (68, 308279), (73, 287164), (82, 255646), (103, 203524), (146, 143582), (164, 127823), (206, 101762), (292, 71791), (412, 50881), (697, 30076), (1241, 16892), (1394, 15038), (1751, 11972), (2482, 8446), (2788, 7519), (2993, 7004), (3502, 5986), (4223, 4964)]