19313217

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 37177920

約数和(自身を除く): 17864703

約数列:

[1, 3, 7, 9, 11, 21, 29, 31, 33, 63, 77, 87, 93, 99, 203, 217, 231, 261, 279, 319, 341, 609, 651, 693, 899, 957, 961, 1023, 1827, 1953, 2233, 2387, 2697, 2871, 2883, 3069, 6293, 6699, 6727, 7161, 8091, 8649, 9889, 10571, 18879, 20097, 20181, 21483, 27869, 29667, 31713, 56637, 60543, 69223, 73997, 83607, 89001, 95139, 195083, 207669, 221991, 250821, 306559, 585249, 623007, 665973, 919677, 1755747, 2145913, 2759031, 6437739, 19313217]

約数ペア:

[(1, 19313217), (3, 6437739), (7, 2759031), (9, 2145913), (11, 1755747), (21, 919677), (29, 665973), (31, 623007), (33, 585249), (63, 306559), (77, 250821), (87, 221991), (93, 207669), (99, 195083), (203, 95139), (217, 89001), (231, 83607), (261, 73997), (279, 69223), (319, 60543), (341, 56637), (609, 31713), (651, 29667), (693, 27869), (899, 21483), (957, 20181), (961, 20097), (1023, 18879), (1827, 10571), (1953, 9889), (2233, 8649), (2387, 8091), (2697, 7161), (2871, 6727), (2883, 6699), (3069, 6293)]