18906444

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 50930880

約数和(自身を除く): 32024436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 131, 171, 211, 228, 262, 342, 393, 422, 524, 633, 684, 786, 844, 1179, 1266, 1572, 1899, 2358, 2489, 2532, 3798, 4009, 4716, 4978, 7467, 7596, 8018, 9956, 12027, 14934, 16036, 22401, 24054, 27641, 29868, 36081, 44802, 48108, 55282, 72162, 82923, 89604, 110564, 144324, 165846, 248769, 331692, 497538, 525179, 995076, 1050358, 1575537, 2100716, 3151074, 4726611, 6302148, 9453222, 18906444]

約数ペア:

[(1, 18906444), (2, 9453222), (3, 6302148), (4, 4726611), (6, 3151074), (9, 2100716), (12, 1575537), (18, 1050358), (19, 995076), (36, 525179), (38, 497538), (57, 331692), (76, 248769), (114, 165846), (131, 144324), (171, 110564), (211, 89604), (228, 82923), (262, 72162), (342, 55282), (393, 48108), (422, 44802), (524, 36081), (633, 29868), (684, 27641), (786, 24054), (844, 22401), (1179, 16036), (1266, 14934), (1572, 12027), (1899, 9956), (2358, 8018), (2489, 7596), (2532, 7467), (3798, 4978), (4009, 4716)]