19915402012

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{26921}}^1$

素因数の和:27019

約数の個数: 96

約数和(自身を含む): 42985603584

約数和(自身を除く): 23070201572

約数列:

[1, 2, 4, 11, 17, 22, 23, 34, 43, 44, 46, 68, 86, 92, 172, 187, 253, 374, 391, 473, 506, 731, 748, 782, 946, 989, 1012, 1462, 1564, 1892, 1978, 2924, 3956, 4301, 8041, 8602, 10879, 16082, 16813, 17204, 21758, 26921, 32164, 33626, 43516, 53842, 67252, 107684, 184943, 296131, 369886, 457657, 592262, 619183, 739772, 915314, 1157603, 1184524, 1238366, 1830628, 2315206, 2476732, 4630412, 5034227, 6811013, 10068454, 10526111, 12733633, 13622026, 19679251, 20136908, 21052222, 25467266, 26624869, 27244052, 39358502, 42104444, 50934532, 53249738, 78717004, 106499476, 115787221, 216471761, 231574442, 292873559, 432943522, 452622773, 463148884, 585747118, 865887044, 905245546, 1171494236, 1810491092, 4978850503, 9957701006, 19915402012]

約数ペア:

[(1, 19915402012), (2, 9957701006), (4, 4978850503), (11, 1810491092), (17, 1171494236), (22, 905245546), (23, 865887044), (34, 585747118), (43, 463148884), (44, 452622773), (46, 432943522), (68, 292873559), (86, 231574442), (92, 216471761), (172, 115787221), (187, 106499476), (253, 78717004), (374, 53249738), (391, 50934532), (473, 42104444), (506, 39358502), (731, 27244052), (748, 26624869), (782, 25467266), (946, 21052222), (989, 20136908), (1012, 19679251), (1462, 13622026), (1564, 12733633), (1892, 10526111), (1978, 10068454), (2924, 6811013), (3956, 5034227), (4301, 4630412), (8041, 2476732), (8602, 2315206), (10879, 1830628), (16082, 1238366), (16813, 1184524), (17204, 1157603), (21758, 915314), (26921, 739772), (32164, 619183), (33626, 592262), (43516, 457657), (53842, 369886), (67252, 296131), (107684, 184943)]