21305284

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 53174016

約数和(自身を除く): 31868732

約数列:

[1, 2, 4, 7, 11, 13, 14, 17, 22, 26, 28, 34, 44, 52, 68, 77, 91, 119, 143, 154, 182, 187, 221, 238, 286, 308, 313, 364, 374, 442, 476, 572, 626, 748, 884, 1001, 1252, 1309, 1547, 2002, 2191, 2431, 2618, 3094, 3443, 4004, 4069, 4382, 4862, 5236, 5321, 6188, 6886, 8138, 8764, 9724, 10642, 13772, 16276, 17017, 21284, 24101, 28483, 34034, 37247, 44759, 48202, 56966, 58531, 68068, 69173, 74494, 89518, 96404, 113932, 117062, 138346, 148988, 179036, 234124, 276692, 313313, 409717, 484211, 626626, 760903, 819434, 968422, 1253252, 1521806, 1638868, 1936844, 3043612, 5326321, 10652642, 21305284]

約数ペア:

[(1, 21305284), (2, 10652642), (4, 5326321), (7, 3043612), (11, 1936844), (13, 1638868), (14, 1521806), (17, 1253252), (22, 968422), (26, 819434), (28, 760903), (34, 626626), (44, 484211), (52, 409717), (68, 313313), (77, 276692), (91, 234124), (119, 179036), (143, 148988), (154, 138346), (182, 117062), (187, 113932), (221, 96404), (238, 89518), (286, 74494), (308, 69173), (313, 68068), (364, 58531), (374, 56966), (442, 48202), (476, 44759), (572, 37247), (626, 34034), (748, 28483), (884, 24101), (1001, 21284), (1252, 17017), (1309, 16276), (1547, 13772), (2002, 10642), (2191, 9724), (2431, 8764), (2618, 8138), (3094, 6886), (3443, 6188), (4004, 5321), (4069, 5236), (4382, 4862)]