21865844

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 52985856

約数和(自身を除く): 31120012

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 43, 44, 52, 77, 86, 91, 127, 143, 154, 172, 182, 254, 286, 301, 308, 364, 473, 508, 559, 572, 602, 889, 946, 1001, 1118, 1204, 1397, 1651, 1778, 1892, 2002, 2236, 2794, 3302, 3311, 3556, 3913, 4004, 5461, 5588, 6149, 6604, 6622, 7826, 9779, 10922, 11557, 12298, 13244, 15652, 18161, 19558, 21844, 23114, 24596, 36322, 38227, 39116, 43043, 46228, 60071, 70993, 72644, 76454, 86086, 120142, 127127, 141986, 152908, 172172, 240284, 254254, 283972, 420497, 496951, 508508, 780923, 840994, 993902, 1561846, 1681988, 1987804, 3123692, 5466461, 10932922, 21865844]

約数ペア:

[(1, 21865844), (2, 10932922), (4, 5466461), (7, 3123692), (11, 1987804), (13, 1681988), (14, 1561846), (22, 993902), (26, 840994), (28, 780923), (43, 508508), (44, 496951), (52, 420497), (77, 283972), (86, 254254), (91, 240284), (127, 172172), (143, 152908), (154, 141986), (172, 127127), (182, 120142), (254, 86086), (286, 76454), (301, 72644), (308, 70993), (364, 60071), (473, 46228), (508, 43043), (559, 39116), (572, 38227), (602, 36322), (889, 24596), (946, 23114), (1001, 21844), (1118, 19558), (1204, 18161), (1397, 15652), (1651, 13244), (1778, 12298), (1892, 11557), (2002, 10922), (2236, 9779), (2794, 7826), (3302, 6622), (3311, 6604), (3556, 6149), (3913, 5588), (4004, 5461)]