21384810

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1553}}^1$

素因数の和:1589

約数の個数: 80

約数和(自身を含む): 60923016

約数和(自身を除く): 39538206

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 306, 405, 459, 510, 765, 810, 918, 1377, 1530, 1553, 2295, 2754, 3106, 4590, 4659, 6885, 7765, 9318, 13770, 13977, 15530, 23295, 26401, 27954, 41931, 46590, 52802, 69885, 79203, 83862, 125793, 132005, 139770, 158406, 209655, 237609, 251586, 264010, 396015, 419310, 475218, 628965, 712827, 792030, 1188045, 1257930, 1425654, 2138481, 2376090, 3564135, 4276962, 7128270, 10692405, 21384810]

約数ペア:

[(1, 21384810), (2, 10692405), (3, 7128270), (5, 4276962), (6, 3564135), (9, 2376090), (10, 2138481), (15, 1425654), (17, 1257930), (18, 1188045), (27, 792030), (30, 712827), (34, 628965), (45, 475218), (51, 419310), (54, 396015), (81, 264010), (85, 251586), (90, 237609), (102, 209655), (135, 158406), (153, 139770), (162, 132005), (170, 125793), (255, 83862), (270, 79203), (306, 69885), (405, 52802), (459, 46590), (510, 41931), (765, 27954), (810, 26401), (918, 23295), (1377, 15530), (1530, 13977), (1553, 13770), (2295, 9318), (2754, 7765), (3106, 6885), (4590, 4659)]