21537516

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:212

約数の個数: 144

約数和(自身を含む): 68402432

約数和(自身を除く): 46864916

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 13, 14, 21, 22, 26, 28, 33, 39, 42, 44, 52, 66, 77, 78, 84, 91, 121, 132, 143, 154, 156, 163, 182, 231, 242, 273, 286, 308, 326, 363, 364, 429, 462, 484, 489, 546, 572, 652, 726, 847, 858, 924, 978, 1001, 1092, 1141, 1452, 1573, 1694, 1716, 1793, 1956, 2002, 2119, 2282, 2541, 3003, 3146, 3388, 3423, 3586, 4004, 4238, 4564, 4719, 5082, 5379, 6006, 6292, 6357, 6846, 7172, 8476, 9438, 10164, 10758, 11011, 12012, 12551, 12714, 13692, 14833, 18876, 19723, 21516, 22022, 23309, 25102, 25428, 29666, 33033, 37653, 39446, 44044, 44499, 46618, 50204, 59169, 59332, 66066, 69927, 75306, 78892, 88998, 93236, 118338, 132132, 138061, 139854, 150612, 163163, 177996, 236676, 256399, 276122, 279708, 326326, 414183, 489489, 512798, 552244, 652652, 769197, 828366, 978978, 1025596, 1538394, 1656732, 1794793, 1957956, 3076788, 3589586, 5384379, 7179172, 10768758, 21537516]

約数ペア:

[(1, 21537516), (2, 10768758), (3, 7179172), (4, 5384379), (6, 3589586), (7, 3076788), (11, 1957956), (12, 1794793), (13, 1656732), (14, 1538394), (21, 1025596), (22, 978978), (26, 828366), (28, 769197), (33, 652652), (39, 552244), (42, 512798), (44, 489489), (52, 414183), (66, 326326), (77, 279708), (78, 276122), (84, 256399), (91, 236676), (121, 177996), (132, 163163), (143, 150612), (154, 139854), (156, 138061), (163, 132132), (182, 118338), (231, 93236), (242, 88998), (273, 78892), (286, 75306), (308, 69927), (326, 66066), (363, 59332), (364, 59169), (429, 50204), (462, 46618), (484, 44499), (489, 44044), (546, 39446), (572, 37653), (652, 33033), (726, 29666), (847, 25428), (858, 25102), (924, 23309), (978, 22022), (1001, 21516), (1092, 19723), (1141, 18876), (1452, 14833), (1573, 13692), (1694, 12714), (1716, 12551), (1793, 12012), (1956, 11011), (2002, 10758), (2119, 10164), (2282, 9438), (2541, 8476), (3003, 7172), (3146, 6846), (3388, 6357), (3423, 6292), (3586, 6006), (4004, 5379), (4238, 5082), (4564, 4719)]