19554381

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 37346400

約数和(自身を除く): 17792019

約数列:

[1, 3, 7, 9, 11, 21, 29, 33, 49, 63, 77, 87, 99, 139, 147, 203, 231, 261, 319, 417, 441, 539, 609, 693, 957, 973, 1251, 1421, 1529, 1617, 1827, 2233, 2871, 2919, 4031, 4263, 4587, 4851, 6699, 6811, 8757, 10703, 12093, 12789, 13761, 15631, 20097, 20433, 28217, 32109, 36279, 44341, 46893, 61299, 74921, 84651, 96327, 133023, 140679, 197519, 224763, 253953, 310387, 399069, 592557, 674289, 931161, 1777671, 2172709, 2793483, 6518127, 19554381]

約数ペア:

[(1, 19554381), (3, 6518127), (7, 2793483), (9, 2172709), (11, 1777671), (21, 931161), (29, 674289), (33, 592557), (49, 399069), (63, 310387), (77, 253953), (87, 224763), (99, 197519), (139, 140679), (147, 133023), (203, 96327), (231, 84651), (261, 74921), (319, 61299), (417, 46893), (441, 44341), (539, 36279), (609, 32109), (693, 28217), (957, 20433), (973, 20097), (1251, 15631), (1421, 13761), (1529, 12789), (1617, 12093), (1827, 10703), (2233, 8757), (2871, 6811), (2919, 6699), (4031, 4851), (4263, 4587)]