21864388

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8581}}^1$

素因数の和:8612

約数の個数: 36

約数和(自身を含む): 47939052

約数和(自身を除く): 26074664

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8581, 17162, 34324, 60067, 111553, 120134, 223106, 240268, 420469, 446212, 780871, 840938, 1561742, 1681876, 3123484, 5466097, 10932194, 21864388]

約数ペア:

[(1, 21864388), (2, 10932194), (4, 5466097), (7, 3123484), (13, 1681876), (14, 1561742), (26, 840938), (28, 780871), (49, 446212), (52, 420469), (91, 240268), (98, 223106), (182, 120134), (196, 111553), (364, 60067), (637, 34324), (1274, 17162), (2548, 8581)]