19565534919

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^2\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:877

約数の個数: 72

約数和(自身を含む): 31400647920

約数和(自身を除く): 11835113001

約数列:

[1, 3, 7, 21, 47, 49, 89, 141, 147, 267, 329, 623, 677, 987, 1869, 2031, 2209, 2303, 4183, 4361, 4739, 6627, 6909, 12549, 13083, 14217, 15463, 29281, 31819, 33173, 46389, 60253, 87843, 95457, 99519, 108241, 180759, 196601, 204967, 222733, 324723, 421771, 589803, 614901, 668199, 1265313, 1376207, 1495493, 1559131, 2831891, 2952397, 4128621, 4486479, 4677393, 8495673, 8857191, 9633449, 10468451, 19823237, 28900347, 31405353, 59469711, 73279157, 133098877, 138762659, 219837471, 399296631, 416287977, 931692139, 2795076417, 6521844973, 19565534919]

約数ペア:

[(1, 19565534919), (3, 6521844973), (7, 2795076417), (21, 931692139), (47, 416287977), (49, 399296631), (89, 219837471), (141, 138762659), (147, 133098877), (267, 73279157), (329, 59469711), (623, 31405353), (677, 28900347), (987, 19823237), (1869, 10468451), (2031, 9633449), (2209, 8857191), (2303, 8495673), (4183, 4677393), (4361, 4486479), (4739, 4128621), (6627, 2952397), (6909, 2831891), (12549, 1559131), (13083, 1495493), (14217, 1376207), (15463, 1265313), (29281, 668199), (31819, 614901), (33173, 589803), (46389, 421771), (60253, 324723), (87843, 222733), (95457, 204967), (99519, 196601), (108241, 180759)]