19888708

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 44126208

約数和(自身を除く): 24237500

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 47, 49, 68, 94, 98, 119, 127, 188, 196, 238, 254, 329, 476, 508, 658, 799, 833, 889, 1316, 1598, 1666, 1778, 2159, 2303, 3196, 3332, 3556, 4318, 4606, 5593, 5969, 6223, 8636, 9212, 11186, 11938, 12446, 15113, 22372, 23876, 24892, 30226, 39151, 41783, 60452, 78302, 83566, 101473, 105791, 156604, 167132, 202946, 211582, 292481, 405892, 423164, 584962, 710311, 1169924, 1420622, 2841244, 4972177, 9944354, 19888708]

約数ペア:

[(1, 19888708), (2, 9944354), (4, 4972177), (7, 2841244), (14, 1420622), (17, 1169924), (28, 710311), (34, 584962), (47, 423164), (49, 405892), (68, 292481), (94, 211582), (98, 202946), (119, 167132), (127, 156604), (188, 105791), (196, 101473), (238, 83566), (254, 78302), (329, 60452), (476, 41783), (508, 39151), (658, 30226), (799, 24892), (833, 23876), (889, 22372), (1316, 15113), (1598, 12446), (1666, 11938), (1778, 11186), (2159, 9212), (2303, 8636), (3196, 6223), (3332, 5969), (3556, 5593), (4318, 4606)]