39991203

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 72025200

約数和(自身を除く): 32033997

約数列:

[1, 3, 7, 9, 21, 29, 49, 53, 59, 63, 87, 147, 159, 177, 203, 261, 371, 413, 441, 477, 531, 609, 1113, 1239, 1421, 1537, 1711, 1827, 2597, 2891, 3127, 3339, 3717, 4263, 4611, 5133, 7791, 8673, 9381, 10759, 11977, 12789, 13833, 15399, 21889, 23373, 26019, 28143, 32277, 35931, 65667, 75313, 83839, 90683, 96831, 107793, 153223, 197001, 225939, 251517, 272049, 459669, 634781, 677817, 754551, 816147, 1379007, 1904343, 4443467, 5713029, 13330401, 39991203]

約数ペア:

[(1, 39991203), (3, 13330401), (7, 5713029), (9, 4443467), (21, 1904343), (29, 1379007), (49, 816147), (53, 754551), (59, 677817), (63, 634781), (87, 459669), (147, 272049), (159, 251517), (177, 225939), (203, 197001), (261, 153223), (371, 107793), (413, 96831), (441, 90683), (477, 83839), (531, 75313), (609, 65667), (1113, 35931), (1239, 32277), (1421, 28143), (1537, 26019), (1711, 23373), (1827, 21889), (2597, 15399), (2891, 13833), (3127, 12789), (3339, 11977), (3717, 10759), (4263, 9381), (4611, 8673), (5133, 7791)]