28738773

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 52531200

約数和(自身を除く): 23792427

約数列:

[1, 3, 7, 9, 19, 21, 27, 53, 57, 63, 133, 151, 159, 171, 189, 371, 399, 453, 477, 513, 1007, 1057, 1113, 1197, 1359, 1431, 2869, 3021, 3171, 3339, 3591, 4077, 7049, 8003, 8607, 9063, 9513, 10017, 20083, 21147, 24009, 25821, 27189, 28539, 56021, 60249, 63441, 72027, 77463, 152057, 168063, 180747, 190323, 216081, 456171, 504189, 542241, 1064399, 1368513, 1512567, 3193197, 4105539, 9579591, 28738773]

約数ペア:

[(1, 28738773), (3, 9579591), (7, 4105539), (9, 3193197), (19, 1512567), (21, 1368513), (27, 1064399), (53, 542241), (57, 504189), (63, 456171), (133, 216081), (151, 190323), (159, 180747), (171, 168063), (189, 152057), (371, 77463), (399, 72027), (453, 63441), (477, 60249), (513, 56021), (1007, 28539), (1057, 27189), (1113, 25821), (1197, 24009), (1359, 21147), (1431, 20083), (2869, 10017), (3021, 9513), (3171, 9063), (3339, 8607), (3591, 8003), (4077, 7049)]