21189294

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:254

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 35419986

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 53, 57, 63, 106, 114, 126, 133, 159, 167, 171, 266, 318, 334, 342, 371, 399, 477, 501, 742, 798, 954, 1002, 1007, 1113, 1169, 1197, 1503, 2014, 2226, 2338, 2394, 3006, 3021, 3173, 3339, 3507, 6042, 6346, 6678, 7014, 7049, 8851, 9063, 9519, 10521, 14098, 17702, 18126, 19038, 21042, 21147, 22211, 26553, 28557, 42294, 44422, 53106, 57114, 61957, 63441, 66633, 79659, 123914, 126882, 133266, 159318, 168169, 185871, 199899, 336338, 371742, 399798, 504507, 557613, 1009014, 1115226, 1177183, 1513521, 2354366, 3027042, 3531549, 7063098, 10594647, 21189294]

約数ペア:

[(1, 21189294), (2, 10594647), (3, 7063098), (6, 3531549), (7, 3027042), (9, 2354366), (14, 1513521), (18, 1177183), (19, 1115226), (21, 1009014), (38, 557613), (42, 504507), (53, 399798), (57, 371742), (63, 336338), (106, 199899), (114, 185871), (126, 168169), (133, 159318), (159, 133266), (167, 126882), (171, 123914), (266, 79659), (318, 66633), (334, 63441), (342, 61957), (371, 57114), (399, 53106), (477, 44422), (501, 42294), (742, 28557), (798, 26553), (954, 22211), (1002, 21147), (1007, 21042), (1113, 19038), (1169, 18126), (1197, 17702), (1503, 14098), (2014, 10521), (2226, 9519), (2338, 9063), (2394, 8851), (3006, 7049), (3021, 7014), (3173, 6678), (3339, 6346), (3507, 6042)]