19153696

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 40374936

約数和(自身を除く): 21221240

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 137, 257, 272, 274, 514, 544, 548, 1028, 1096, 2056, 2192, 2329, 4112, 4369, 4384, 4658, 8224, 8738, 9316, 17476, 18632, 34952, 35209, 37264, 69904, 70418, 74528, 139808, 140836, 281672, 563344, 598553, 1126688, 1197106, 2394212, 4788424, 9576848, 19153696]

約数ペア:

[(1, 19153696), (2, 9576848), (4, 4788424), (8, 2394212), (16, 1197106), (17, 1126688), (32, 598553), (34, 563344), (68, 281672), (136, 140836), (137, 139808), (257, 74528), (272, 70418), (274, 69904), (514, 37264), (544, 35209), (548, 34952), (1028, 18632), (1096, 17476), (2056, 9316), (2192, 8738), (2329, 8224), (4112, 4658), (4369, 4384)]