19911528

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1013}}^1$

素因数の和:1048

約数の個数: 128

約数和(自身を含む): 68140800

約数和(自身を除く): 48229272

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 27, 28, 36, 39, 42, 52, 54, 56, 63, 72, 78, 84, 91, 104, 108, 117, 126, 156, 168, 182, 189, 216, 234, 252, 273, 312, 351, 364, 378, 468, 504, 546, 702, 728, 756, 819, 936, 1013, 1092, 1404, 1512, 1638, 2026, 2184, 2457, 2808, 3039, 3276, 4052, 4914, 6078, 6552, 7091, 8104, 9117, 9828, 12156, 13169, 14182, 18234, 19656, 21273, 24312, 26338, 27351, 28364, 36468, 39507, 42546, 52676, 54702, 56728, 63819, 72936, 79014, 85092, 92183, 105352, 109404, 118521, 127638, 158028, 170184, 184366, 191457, 218808, 237042, 255276, 276549, 316056, 355563, 368732, 382914, 474084, 510552, 553098, 711126, 737464, 765828, 829647, 948168, 1106196, 1422252, 1531656, 1659294, 2212392, 2488941, 2844504, 3318588, 4977882, 6637176, 9955764, 19911528]

約数ペア:

[(1, 19911528), (2, 9955764), (3, 6637176), (4, 4977882), (6, 3318588), (7, 2844504), (8, 2488941), (9, 2212392), (12, 1659294), (13, 1531656), (14, 1422252), (18, 1106196), (21, 948168), (24, 829647), (26, 765828), (27, 737464), (28, 711126), (36, 553098), (39, 510552), (42, 474084), (52, 382914), (54, 368732), (56, 355563), (63, 316056), (72, 276549), (78, 255276), (84, 237042), (91, 218808), (104, 191457), (108, 184366), (117, 170184), (126, 158028), (156, 127638), (168, 118521), (182, 109404), (189, 105352), (216, 92183), (234, 85092), (252, 79014), (273, 72936), (312, 63819), (351, 56728), (364, 54702), (378, 52676), (468, 42546), (504, 39507), (546, 36468), (702, 28364), (728, 27351), (756, 26338), (819, 24312), (936, 21273), (1013, 19656), (1092, 18234), (1404, 14182), (1512, 13169), (1638, 12156), (2026, 9828), (2184, 9117), (2457, 8104), (2808, 7091), (3039, 6552), (3276, 6078), (4052, 4914)]