19684756

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1319}}^1$

素因数の和:1384

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 23780204

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 164, 182, 287, 364, 533, 574, 1066, 1148, 1319, 2132, 2638, 3731, 5276, 7462, 9233, 14924, 17147, 18466, 34294, 36932, 54079, 68588, 108158, 120029, 216316, 240058, 378553, 480116, 703027, 757106, 1406054, 1514212, 2812108, 4921189, 9842378, 19684756]

約数ペア:

[(1, 19684756), (2, 9842378), (4, 4921189), (7, 2812108), (13, 1514212), (14, 1406054), (26, 757106), (28, 703027), (41, 480116), (52, 378553), (82, 240058), (91, 216316), (164, 120029), (182, 108158), (287, 68588), (364, 54079), (533, 36932), (574, 34294), (1066, 18466), (1148, 17147), (1319, 14924), (2132, 9233), (2638, 7462), (3731, 5276)]