20869492

素因数分解:

$2^2\times 7^4\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:126

約数の個数: 60

約数和(自身を含む): 44468676

約数和(自身を除く): 23599184

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 53, 82, 98, 106, 164, 196, 212, 287, 343, 371, 574, 686, 742, 1148, 1372, 1484, 2009, 2173, 2401, 2597, 4018, 4346, 4802, 5194, 8036, 8692, 9604, 10388, 14063, 15211, 18179, 28126, 30422, 36358, 56252, 60844, 72716, 98441, 106477, 127253, 196882, 212954, 254506, 393764, 425908, 509012, 745339, 1490678, 2981356, 5217373, 10434746, 20869492]

約数ペア:

[(1, 20869492), (2, 10434746), (4, 5217373), (7, 2981356), (14, 1490678), (28, 745339), (41, 509012), (49, 425908), (53, 393764), (82, 254506), (98, 212954), (106, 196882), (164, 127253), (196, 106477), (212, 98441), (287, 72716), (343, 60844), (371, 56252), (574, 36358), (686, 30422), (742, 28126), (1148, 18179), (1372, 15211), (1484, 14063), (2009, 10388), (2173, 9604), (2401, 8692), (2597, 8036), (4018, 5194), (4346, 4802)]