20851070044

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1068409}}^1$

素因数の和:1068478

約数の個数: 48

約数和(自身を含む): 45232205760

約数和(自身を除く): 24381135716

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 41, 68, 82, 119, 164, 238, 287, 476, 574, 697, 1148, 1394, 2788, 4879, 9758, 19516, 1068409, 2136818, 4273636, 7478863, 14957726, 18162953, 29915452, 36325906, 43804769, 72651812, 87609538, 127140671, 175219076, 254281342, 306633383, 508562684, 613266766, 744681073, 1226533532, 1489362146, 2978724292, 5212767511, 10425535022, 20851070044]

約数ペア:

[(1, 20851070044), (2, 10425535022), (4, 5212767511), (7, 2978724292), (14, 1489362146), (17, 1226533532), (28, 744681073), (34, 613266766), (41, 508562684), (68, 306633383), (82, 254281342), (119, 175219076), (164, 127140671), (238, 87609538), (287, 72651812), (476, 43804769), (574, 36325906), (697, 29915452), (1148, 18162953), (1394, 14957726), (2788, 7478863), (4879, 4273636), (9758, 2136818), (19516, 1068409)]