19946355

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{547}}^1$

素因数の和:596

約数の個数: 64

約数和(自身を含む): 39771648

約数和(自身を除く): 19825293

約数列:

[1, 3, 5, 11, 13, 15, 17, 33, 39, 51, 55, 65, 85, 143, 165, 187, 195, 221, 255, 429, 547, 561, 663, 715, 935, 1105, 1641, 2145, 2431, 2735, 2805, 3315, 6017, 7111, 7293, 8205, 9299, 12155, 18051, 21333, 27897, 30085, 35555, 36465, 46495, 78221, 90255, 102289, 106665, 120887, 139485, 234663, 306867, 362661, 391105, 511445, 604435, 1173315, 1329757, 1534335, 1813305, 3989271, 6648785, 19946355]

約数ペア:

[(1, 19946355), (3, 6648785), (5, 3989271), (11, 1813305), (13, 1534335), (15, 1329757), (17, 1173315), (33, 604435), (39, 511445), (51, 391105), (55, 362661), (65, 306867), (85, 234663), (143, 139485), (165, 120887), (187, 106665), (195, 102289), (221, 90255), (255, 78221), (429, 46495), (547, 36465), (561, 35555), (663, 30085), (715, 27897), (935, 21333), (1105, 18051), (1641, 12155), (2145, 9299), (2431, 8205), (2735, 7293), (2805, 7111), (3315, 6017)]