17681972

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{307}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 41291712

約数和(自身を除く): 23609740

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 121, 154, 187, 238, 242, 307, 308, 374, 476, 484, 614, 748, 847, 1228, 1309, 1694, 2057, 2149, 2618, 3377, 3388, 4114, 4298, 5219, 5236, 6754, 8228, 8596, 10438, 13508, 14399, 20876, 23639, 28798, 36533, 37147, 47278, 57409, 57596, 73066, 74294, 94556, 114818, 146132, 148588, 229636, 260029, 401863, 520058, 631499, 803726, 1040116, 1262998, 1607452, 2525996, 4420493, 8840986, 17681972]

約数ペア:

[(1, 17681972), (2, 8840986), (4, 4420493), (7, 2525996), (11, 1607452), (14, 1262998), (17, 1040116), (22, 803726), (28, 631499), (34, 520058), (44, 401863), (68, 260029), (77, 229636), (119, 148588), (121, 146132), (154, 114818), (187, 94556), (238, 74294), (242, 73066), (307, 57596), (308, 57409), (374, 47278), (476, 37147), (484, 36533), (614, 28798), (748, 23639), (847, 20876), (1228, 14399), (1309, 13508), (1694, 10438), (2057, 8596), (2149, 8228), (2618, 6754), (3377, 5236), (3388, 5219), (4114, 4298)]