21008625

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{463}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 38508288

約数和(自身を除く): 17499663

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 125, 165, 275, 363, 375, 463, 605, 825, 1375, 1389, 1815, 2315, 3025, 4125, 5093, 6945, 9075, 11575, 15125, 15279, 25465, 34725, 45375, 56023, 57875, 76395, 127325, 168069, 173625, 280115, 381975, 636625, 840345, 1400575, 1909875, 4201725, 7002875, 21008625]

約数ペア:

[(1, 21008625), (3, 7002875), (5, 4201725), (11, 1909875), (15, 1400575), (25, 840345), (33, 636625), (55, 381975), (75, 280115), (121, 173625), (125, 168069), (165, 127325), (275, 76395), (363, 57875), (375, 56023), (463, 45375), (605, 34725), (825, 25465), (1375, 15279), (1389, 15125), (1815, 11575), (2315, 9075), (3025, 6945), (4125, 5093)]