19928844

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1$

素因数の和:559

約数の個数: 72

約数和(自身を含む): 54934880

約数和(自身を除く): 35006036

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 97, 117, 156, 194, 234, 291, 388, 439, 468, 582, 873, 878, 1164, 1261, 1317, 1746, 1756, 2522, 2634, 3492, 3783, 3951, 5044, 5268, 5707, 7566, 7902, 11349, 11414, 15132, 15804, 17121, 22698, 22828, 34242, 42583, 45396, 51363, 68484, 85166, 102726, 127749, 170332, 205452, 255498, 383247, 510996, 553579, 766494, 1107158, 1532988, 1660737, 2214316, 3321474, 4982211, 6642948, 9964422, 19928844]

約数ペア:

[(1, 19928844), (2, 9964422), (3, 6642948), (4, 4982211), (6, 3321474), (9, 2214316), (12, 1660737), (13, 1532988), (18, 1107158), (26, 766494), (36, 553579), (39, 510996), (52, 383247), (78, 255498), (97, 205452), (117, 170332), (156, 127749), (194, 102726), (234, 85166), (291, 68484), (388, 51363), (439, 45396), (468, 42583), (582, 34242), (873, 22828), (878, 22698), (1164, 17121), (1261, 15804), (1317, 15132), (1746, 11414), (1756, 11349), (2522, 7902), (2634, 7566), (3492, 5707), (3783, 5268), (3951, 5044)]