19537947

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:113

約数の個数: 96

約数和(自身を含む): 37739520

約数和(自身を除く): 18201573

約数列:

[1, 3, 9, 11, 13, 17, 19, 33, 39, 47, 51, 57, 99, 117, 141, 143, 153, 171, 187, 209, 221, 247, 323, 423, 429, 517, 561, 611, 627, 663, 741, 799, 893, 969, 1287, 1551, 1683, 1833, 1881, 1989, 2223, 2397, 2431, 2679, 2717, 2907, 3553, 4199, 4653, 5499, 6721, 7191, 7293, 8037, 8151, 8789, 9823, 10387, 10659, 11609, 12597, 15181, 20163, 21879, 24453, 26367, 29469, 31161, 31977, 34827, 37791, 45543, 46189, 60489, 79101, 88407, 93483, 104481, 114257, 127699, 136629, 138567, 166991, 197353, 342771, 383097, 415701, 500973, 592059, 1028313, 1149291, 1502919, 1776177, 2170883, 6512649, 19537947]

約数ペア:

[(1, 19537947), (3, 6512649), (9, 2170883), (11, 1776177), (13, 1502919), (17, 1149291), (19, 1028313), (33, 592059), (39, 500973), (47, 415701), (51, 383097), (57, 342771), (99, 197353), (117, 166991), (141, 138567), (143, 136629), (153, 127699), (171, 114257), (187, 104481), (209, 93483), (221, 88407), (247, 79101), (323, 60489), (423, 46189), (429, 45543), (517, 37791), (561, 34827), (611, 31977), (627, 31161), (663, 29469), (741, 26367), (799, 24453), (893, 21879), (969, 20163), (1287, 15181), (1551, 12597), (1683, 11609), (1833, 10659), (1881, 10387), (1989, 9823), (2223, 8789), (2397, 8151), (2431, 8037), (2679, 7293), (2717, 7191), (2907, 6721), (3553, 5499), (4199, 4653)]