21887586

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{641}}^1$

素因数の和:927

約数の個数: 48

約数和(自身を含む): 54482688

約数和(自身を除く): 32595102

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 271, 542, 641, 813, 1282, 1626, 1897, 1923, 2439, 3794, 3846, 4487, 4878, 5691, 5769, 8974, 11382, 11538, 13461, 17073, 26922, 34146, 40383, 80766, 173711, 347422, 521133, 1042266, 1215977, 1563399, 2431954, 3126798, 3647931, 7295862, 10943793, 21887586]

約数ペア:

[(1, 21887586), (2, 10943793), (3, 7295862), (6, 3647931), (7, 3126798), (9, 2431954), (14, 1563399), (18, 1215977), (21, 1042266), (42, 521133), (63, 347422), (126, 173711), (271, 80766), (542, 40383), (641, 34146), (813, 26922), (1282, 17073), (1626, 13461), (1897, 11538), (1923, 11382), (2439, 8974), (3794, 5769), (3846, 5691), (4487, 4878)]