28945917

素因数分解:

$3^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:70

約数の個数: 144

約数和(自身を含む): 62741952

約数和(自身を除く): 33796035

約数列:

[1, 3, 7, 9, 11, 13, 17, 21, 27, 33, 39, 49, 51, 63, 77, 81, 91, 99, 117, 119, 143, 147, 153, 187, 189, 221, 231, 243, 273, 297, 351, 357, 429, 441, 459, 539, 561, 567, 637, 663, 693, 819, 833, 891, 1001, 1053, 1071, 1287, 1309, 1323, 1377, 1547, 1617, 1683, 1701, 1911, 1989, 2079, 2431, 2457, 2499, 2673, 3003, 3159, 3213, 3861, 3927, 3969, 4131, 4641, 4851, 5049, 5733, 5967, 6237, 7007, 7293, 7371, 7497, 9009, 9163, 9639, 10829, 11583, 11781, 11907, 13923, 14553, 15147, 17017, 17199, 17901, 18711, 21021, 21879, 22113, 22491, 27027, 27489, 28917, 32487, 34749, 35343, 41769, 43659, 45441, 51051, 51597, 53703, 63063, 65637, 67473, 81081, 82467, 97461, 106029, 119119, 125307, 130977, 153153, 154791, 189189, 196911, 202419, 243243, 247401, 292383, 318087, 357357, 375921, 459459, 567567, 590733, 742203, 877149, 1072071, 1378377, 1702701, 2226609, 2631447, 3216213, 4135131, 9648639, 28945917]

約数ペア:

[(1, 28945917), (3, 9648639), (7, 4135131), (9, 3216213), (11, 2631447), (13, 2226609), (17, 1702701), (21, 1378377), (27, 1072071), (33, 877149), (39, 742203), (49, 590733), (51, 567567), (63, 459459), (77, 375921), (81, 357357), (91, 318087), (99, 292383), (117, 247401), (119, 243243), (143, 202419), (147, 196911), (153, 189189), (187, 154791), (189, 153153), (221, 130977), (231, 125307), (243, 119119), (273, 106029), (297, 97461), (351, 82467), (357, 81081), (429, 67473), (441, 65637), (459, 63063), (539, 53703), (561, 51597), (567, 51051), (637, 45441), (663, 43659), (693, 41769), (819, 35343), (833, 34749), (891, 32487), (1001, 28917), (1053, 27489), (1071, 27027), (1287, 22491), (1309, 22113), (1323, 21879), (1377, 21021), (1547, 18711), (1617, 17901), (1683, 17199), (1701, 17017), (1911, 15147), (1989, 14553), (2079, 13923), (2431, 11907), (2457, 11781), (2499, 11583), (2673, 10829), (3003, 9639), (3159, 9163), (3213, 9009), (3861, 7497), (3927, 7371), (3969, 7293), (4131, 7007), (4641, 6237), (4851, 5967), (5049, 5733)]