21043638

素因数分解:

$2^1\times 3^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{241}}^1$

素因数の和:280

約数の個数: 120

約数和(自身を含む): 60086664

約数和(自身を除く): 39043026

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 49, 54, 63, 66, 77, 81, 98, 99, 126, 147, 154, 162, 189, 198, 231, 241, 294, 297, 378, 441, 462, 482, 539, 567, 594, 693, 723, 882, 891, 1078, 1134, 1323, 1386, 1446, 1617, 1687, 1782, 2079, 2169, 2646, 2651, 3234, 3374, 3969, 4158, 4338, 4851, 5061, 5302, 6237, 6507, 7938, 7953, 9702, 10122, 11809, 12474, 13014, 14553, 15183, 15906, 18557, 19521, 23618, 23859, 29106, 30366, 35427, 37114, 39042, 43659, 45549, 47718, 55671, 70854, 71577, 87318, 91098, 106281, 111342, 129899, 136647, 143154, 167013, 212562, 214731, 259798, 273294, 318843, 334026, 389697, 429462, 501039, 637686, 779394, 956529, 1002078, 1169091, 1503117, 1913058, 2338182, 3006234, 3507273, 7014546, 10521819, 21043638]

約数ペア:

[(1, 21043638), (2, 10521819), (3, 7014546), (6, 3507273), (7, 3006234), (9, 2338182), (11, 1913058), (14, 1503117), (18, 1169091), (21, 1002078), (22, 956529), (27, 779394), (33, 637686), (42, 501039), (49, 429462), (54, 389697), (63, 334026), (66, 318843), (77, 273294), (81, 259798), (98, 214731), (99, 212562), (126, 167013), (147, 143154), (154, 136647), (162, 129899), (189, 111342), (198, 106281), (231, 91098), (241, 87318), (294, 71577), (297, 70854), (378, 55671), (441, 47718), (462, 45549), (482, 43659), (539, 39042), (567, 37114), (594, 35427), (693, 30366), (723, 29106), (882, 23859), (891, 23618), (1078, 19521), (1134, 18557), (1323, 15906), (1386, 15183), (1446, 14553), (1617, 13014), (1687, 12474), (1782, 11809), (2079, 10122), (2169, 9702), (2646, 7953), (2651, 7938), (3234, 6507), (3374, 6237), (3969, 5302), (4158, 5061), (4338, 4851)]