20178653931

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{761}}^1\times {\mathrm{1409}}^1$

素因数の和:2237

約数の個数: 64

約数和(自身を含む): 32490460800

約数和(自身を除く): 12311806869

約数列:

[1, 3, 9, 17, 27, 41, 51, 123, 153, 369, 459, 697, 761, 1107, 1409, 2091, 2283, 4227, 6273, 6849, 12681, 12937, 18819, 20547, 23953, 31201, 38043, 38811, 57769, 71859, 93603, 116433, 173307, 215577, 280809, 349299, 519921, 530417, 646731, 842427, 982073, 1072249, 1559763, 1591251, 2946219, 3216747, 4773753, 8838657, 9650241, 14321259, 18228233, 26515971, 28950723, 43962209, 54684699, 131886627, 164054097, 395659881, 492162291, 747357553, 1186979643, 2242072659, 6726217977, 20178653931]

約数ペア:

[(1, 20178653931), (3, 6726217977), (9, 2242072659), (17, 1186979643), (27, 747357553), (41, 492162291), (51, 395659881), (123, 164054097), (153, 131886627), (369, 54684699), (459, 43962209), (697, 28950723), (761, 26515971), (1107, 18228233), (1409, 14321259), (2091, 9650241), (2283, 8838657), (4227, 4773753), (6273, 3216747), (6849, 2946219), (12681, 1591251), (12937, 1559763), (18819, 1072249), (20547, 982073), (23953, 842427), (31201, 646731), (38043, 530417), (38811, 519921), (57769, 349299), (71859, 280809), (93603, 215577), (116433, 173307)]