20997252

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 58060800

約数和(自身を除く): 37063548

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 79, 92, 107, 108, 138, 158, 207, 214, 237, 276, 316, 321, 414, 428, 474, 621, 642, 711, 828, 948, 963, 1242, 1284, 1422, 1817, 1926, 2133, 2461, 2484, 2844, 2889, 3634, 3852, 4266, 4922, 5451, 5778, 7268, 7383, 8453, 8532, 9844, 10902, 11556, 14766, 16353, 16906, 21804, 22149, 25359, 29532, 32706, 33812, 44298, 49059, 50718, 65412, 66447, 76077, 88596, 98118, 101436, 132894, 152154, 194419, 196236, 228231, 265788, 304308, 388838, 456462, 583257, 777676, 912924, 1166514, 1749771, 2333028, 3499542, 5249313, 6999084, 10498626, 20997252]

約数ペア:

[(1, 20997252), (2, 10498626), (3, 6999084), (4, 5249313), (6, 3499542), (9, 2333028), (12, 1749771), (18, 1166514), (23, 912924), (27, 777676), (36, 583257), (46, 456462), (54, 388838), (69, 304308), (79, 265788), (92, 228231), (107, 196236), (108, 194419), (138, 152154), (158, 132894), (207, 101436), (214, 98118), (237, 88596), (276, 76077), (316, 66447), (321, 65412), (414, 50718), (428, 49059), (474, 44298), (621, 33812), (642, 32706), (711, 29532), (828, 25359), (948, 22149), (963, 21804), (1242, 16906), (1284, 16353), (1422, 14766), (1817, 11556), (1926, 10902), (2133, 9844), (2461, 8532), (2484, 8453), (2844, 7383), (2889, 7268), (3634, 5778), (3852, 5451), (4266, 4922)]