21546837

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 38223360

約数和(自身を除く): 16676523

約数列:

[1, 3, 9, 13, 17, 23, 27, 39, 51, 69, 117, 153, 157, 207, 221, 299, 351, 391, 459, 471, 621, 663, 897, 1173, 1413, 1989, 2041, 2669, 2691, 3519, 3611, 4239, 5083, 5967, 6123, 8007, 8073, 10557, 10833, 15249, 18369, 24021, 32499, 34697, 45747, 46943, 55107, 61387, 72063, 97497, 104091, 137241, 140829, 184161, 312273, 422487, 552483, 798031, 936819, 1267461, 1657449, 2394093, 7182279, 21546837]

約数ペア:

[(1, 21546837), (3, 7182279), (9, 2394093), (13, 1657449), (17, 1267461), (23, 936819), (27, 798031), (39, 552483), (51, 422487), (69, 312273), (117, 184161), (153, 140829), (157, 137241), (207, 104091), (221, 97497), (299, 72063), (351, 61387), (391, 55107), (459, 46943), (471, 45747), (621, 34697), (663, 32499), (897, 24021), (1173, 18369), (1413, 15249), (1989, 10833), (2041, 10557), (2669, 8073), (2691, 8007), (3519, 6123), (3611, 5967), (4239, 5083)]