20863131.0000000000

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{32987}}^1$

素因数の和:33167

約数の個数: 72

約数和(自身を含む): 3938503296

約数和(自身を除く): 2583529284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 163, 252, 326, 489, 652, 978, 1141, 1467, 1956, 2282, 2934, 3423, 4564, 5868, 6846, 10269, 13692, 20538, 32987, 41076, 65974, 98961, 131948, 197922, 230909, 296883, 395844, 461818, 593766, 692727, 923636, 1187532, 1385454, 2078181, 2770908, 4156362, 5376881, 8312724, 10753762, 16130643, 21507524, 32261286, 37638167, 48391929, 64522572, 75276334, 96783858, 112914501, 150552668, 193567716, 225829002, 338743503, 451658004, 677487006, 1354974012]

約数ペア:

[(1, 1354974012), (2, 677487006), (3, 451658004), (4, 338743503), (6, 225829002), (7, 193567716), (9, 150552668), (12, 112914501), (14, 96783858), (18, 75276334), (21, 64522572), (28, 48391929), (36, 37638167), (42, 32261286), (63, 21507524), (84, 16130643), (126, 10753762), (163, 8312724), (252, 5376881), (326, 4156362), (489, 2770908), (652, 2078181), (978, 1385454), (1141, 1187532), (1467, 923636), (1956, 692727), (2282, 593766), (2934, 461818), (3423, 395844), (4564, 296883), (5868, 230909), (6846, 197922), (10269, 131948), (13692, 98961), (20538, 65974), (32987, 41076)]