21593418

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{607}}^1$

素因数の和:648

約数の個数: 72

約数和(自身を含む): 55310976

約数和(自身を除く): 33717558

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 121, 147, 154, 231, 242, 294, 363, 462, 539, 607, 726, 847, 1078, 1214, 1617, 1694, 1821, 2541, 3234, 3642, 4249, 5082, 5929, 6677, 8498, 11858, 12747, 13354, 17787, 20031, 25494, 29743, 35574, 40062, 46739, 59486, 73447, 89229, 93478, 140217, 146894, 178458, 220341, 280434, 327173, 440682, 514129, 654346, 981519, 1028258, 1542387, 1963038, 3084774, 3598903, 7197806, 10796709, 21593418]

約数ペア:

[(1, 21593418), (2, 10796709), (3, 7197806), (6, 3598903), (7, 3084774), (11, 1963038), (14, 1542387), (21, 1028258), (22, 981519), (33, 654346), (42, 514129), (49, 440682), (66, 327173), (77, 280434), (98, 220341), (121, 178458), (147, 146894), (154, 140217), (231, 93478), (242, 89229), (294, 73447), (363, 59486), (462, 46739), (539, 40062), (607, 35574), (726, 29743), (847, 25494), (1078, 20031), (1214, 17787), (1617, 13354), (1694, 12747), (1821, 11858), (2541, 8498), (3234, 6677), (3642, 5929), (4249, 5082)]