21271870256

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{81619}}^1$

素因数の和:81826

約数の個数: 80

約数和(自身を含む): 51009235200

約数和(自身を除く): 29737364944

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 179, 182, 208, 358, 364, 716, 728, 1253, 1432, 1456, 2327, 2506, 2864, 4654, 5012, 9308, 10024, 16289, 18616, 20048, 32578, 37232, 65156, 81619, 130312, 163238, 260624, 326476, 571333, 652952, 1061047, 1142666, 1305904, 2122094, 2285332, 4244188, 4570664, 7427329, 8488376, 9141328, 14609801, 14854658, 16976752, 29219602, 29709316, 58439204, 59418632, 102268607, 116878408, 118837264, 189927413, 204537214, 233756816, 379854826, 409074428, 759709652, 818148856, 1329491891, 1519419304, 1636297712, 2658983782, 3038838608, 5317967564, 10635935128, 21271870256]

約数ペア:

[(1, 21271870256), (2, 10635935128), (4, 5317967564), (7, 3038838608), (8, 2658983782), (13, 1636297712), (14, 1519419304), (16, 1329491891), (26, 818148856), (28, 759709652), (52, 409074428), (56, 379854826), (91, 233756816), (104, 204537214), (112, 189927413), (179, 118837264), (182, 116878408), (208, 102268607), (358, 59418632), (364, 58439204), (716, 29709316), (728, 29219602), (1253, 16976752), (1432, 14854658), (1456, 14609801), (2327, 9141328), (2506, 8488376), (2864, 7427329), (4654, 4570664), (5012, 4244188), (9308, 2285332), (10024, 2122094), (16289, 1305904), (18616, 1142666), (20048, 1061047), (32578, 652952), (37232, 571333), (65156, 326476), (81619, 260624), (130312, 163238)]