21318402

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 50782464

約数和(自身を除く): 29464062

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 61, 106, 122, 157, 159, 183, 314, 318, 366, 371, 427, 471, 742, 854, 942, 1099, 1113, 1281, 2198, 2226, 2562, 3233, 3297, 6466, 6594, 8321, 9577, 9699, 16642, 19154, 19398, 22631, 24963, 28731, 45262, 49926, 57462, 58247, 67039, 67893, 116494, 134078, 135786, 174741, 201117, 349482, 402234, 507581, 1015162, 1522743, 3045486, 3553067, 7106134, 10659201, 21318402]

約数ペア:

[(1, 21318402), (2, 10659201), (3, 7106134), (6, 3553067), (7, 3045486), (14, 1522743), (21, 1015162), (42, 507581), (53, 402234), (61, 349482), (106, 201117), (122, 174741), (157, 135786), (159, 134078), (183, 116494), (314, 67893), (318, 67039), (366, 58247), (371, 57462), (427, 49926), (471, 45262), (742, 28731), (854, 24963), (942, 22631), (1099, 19398), (1113, 19154), (1281, 16642), (2198, 9699), (2226, 9577), (2562, 8321), (3233, 6594), (3297, 6466)]