19673654

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 41029632

約数和(自身を除く): 21355978

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 31, 62, 77, 91, 143, 154, 182, 217, 286, 317, 341, 403, 434, 634, 682, 806, 1001, 2002, 2219, 2387, 2821, 3487, 4121, 4433, 4438, 4774, 5642, 6974, 8242, 8866, 9827, 19654, 24409, 28847, 31031, 45331, 48818, 57694, 62062, 68789, 90662, 108097, 127751, 137578, 216194, 255502, 317317, 634634, 756679, 894257, 1405261, 1513358, 1788514, 2810522, 9836827, 19673654]

約数ペア:

[(1, 19673654), (2, 9836827), (7, 2810522), (11, 1788514), (13, 1513358), (14, 1405261), (22, 894257), (26, 756679), (31, 634634), (62, 317317), (77, 255502), (91, 216194), (143, 137578), (154, 127751), (182, 108097), (217, 90662), (286, 68789), (317, 62062), (341, 57694), (403, 48818), (434, 45331), (634, 31031), (682, 28847), (806, 24409), (1001, 19654), (2002, 9827), (2219, 8866), (2387, 8242), (2821, 6974), (3487, 5642), (4121, 4774), (4433, 4438)]