21787452

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{601}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 59164560

約数和(自身を除く): 37377108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 53, 57, 76, 106, 114, 159, 171, 212, 228, 318, 342, 477, 601, 636, 684, 954, 1007, 1202, 1803, 1908, 2014, 2404, 3021, 3606, 4028, 5409, 6042, 7212, 9063, 10818, 11419, 12084, 18126, 21636, 22838, 31853, 34257, 36252, 45676, 63706, 68514, 95559, 102771, 127412, 137028, 191118, 205542, 286677, 382236, 411084, 573354, 605207, 1146708, 1210414, 1815621, 2420828, 3631242, 5446863, 7262484, 10893726, 21787452]

約数ペア:

[(1, 21787452), (2, 10893726), (3, 7262484), (4, 5446863), (6, 3631242), (9, 2420828), (12, 1815621), (18, 1210414), (19, 1146708), (36, 605207), (38, 573354), (53, 411084), (57, 382236), (76, 286677), (106, 205542), (114, 191118), (159, 137028), (171, 127412), (212, 102771), (228, 95559), (318, 68514), (342, 63706), (477, 45676), (601, 36252), (636, 34257), (684, 31853), (954, 22838), (1007, 21636), (1202, 18126), (1803, 12084), (1908, 11419), (2014, 10818), (2404, 9063), (3021, 7212), (3606, 6042), (4028, 5409)]