21121958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:94

約数の個数: 64

約数和(自身を含む): 41126400

約数和(自身を除く): 20004442

約数列:

[1, 2, 11, 13, 19, 22, 23, 26, 38, 46, 143, 169, 209, 247, 253, 286, 299, 338, 418, 437, 494, 506, 598, 874, 1859, 2197, 2717, 3211, 3289, 3718, 3887, 4394, 4807, 5434, 5681, 6422, 6578, 7774, 9614, 11362, 24167, 35321, 41743, 42757, 48334, 50531, 62491, 70642, 73853, 83486, 85514, 101062, 124982, 147706, 459173, 555841, 812383, 918346, 960089, 1111682, 1624766, 1920178, 10560979, 21121958]

約数ペア:

[(1, 21121958), (2, 10560979), (11, 1920178), (13, 1624766), (19, 1111682), (22, 960089), (23, 918346), (26, 812383), (38, 555841), (46, 459173), (143, 147706), (169, 124982), (209, 101062), (247, 85514), (253, 83486), (286, 73853), (299, 70642), (338, 62491), (418, 50531), (437, 48334), (494, 42757), (506, 41743), (598, 35321), (874, 24167), (1859, 11362), (2197, 9614), (2717, 7774), (3211, 6578), (3289, 6422), (3718, 5681), (3887, 5434), (4394, 4807)]