1991409228

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{16829}}^1$

素因数の和:17031

約数の個数: 72

約数和(自身を含む): 5329724400

約数和(自身を除く): 3338315172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 173, 228, 342, 346, 519, 684, 692, 1038, 1557, 2076, 3114, 3287, 6228, 6574, 9861, 13148, 16829, 19722, 29583, 33658, 39444, 50487, 59166, 67316, 100974, 118332, 151461, 201948, 302922, 319751, 605844, 639502, 959253, 1279004, 1918506, 2877759, 2911417, 3837012, 5755518, 5822834, 8734251, 11511036, 11645668, 17468502, 26202753, 34937004, 52405506, 55316923, 104811012, 110633846, 165950769, 221267692, 331901538, 497852307, 663803076, 995704614, 1991409228]

約数ペア:

[(1, 1991409228), (2, 995704614), (3, 663803076), (4, 497852307), (6, 331901538), (9, 221267692), (12, 165950769), (18, 110633846), (19, 104811012), (36, 55316923), (38, 52405506), (57, 34937004), (76, 26202753), (114, 17468502), (171, 11645668), (173, 11511036), (228, 8734251), (342, 5822834), (346, 5755518), (519, 3837012), (684, 2911417), (692, 2877759), (1038, 1918506), (1557, 1279004), (2076, 959253), (3114, 639502), (3287, 605844), (6228, 319751), (6574, 302922), (9861, 201948), (13148, 151461), (16829, 118332), (19722, 100974), (29583, 67316), (33658, 59166), (39444, 50487)]