21019898360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{588463}}^1$

素因数の和:588540

約数の個数: 64

約数和(自身を含む): 50843289600

約数和(自身を除く): 29823391240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 760, 893, 940, 1786, 1880, 3572, 4465, 7144, 8930, 17860, 35720, 588463, 1176926, 2353852, 2942315, 4707704, 5884630, 11180797, 11769260, 22361594, 23538520, 27657761, 44723188, 55315522, 55903985, 89446376, 110631044, 111807970, 138288805, 221262088, 223615940, 276577610, 447231880, 525497459, 553155220, 1050994918, 1106310440, 2101989836, 2627487295, 4203979672, 5254974590, 10509949180, 21019898360]

約数ペア:

[(1, 21019898360), (2, 10509949180), (4, 5254974590), (5, 4203979672), (8, 2627487295), (10, 2101989836), (19, 1106310440), (20, 1050994918), (38, 553155220), (40, 525497459), (47, 447231880), (76, 276577610), (94, 223615940), (95, 221262088), (152, 138288805), (188, 111807970), (190, 110631044), (235, 89446376), (376, 55903985), (380, 55315522), (470, 44723188), (760, 27657761), (893, 23538520), (940, 22361594), (1786, 11769260), (1880, 11180797), (3572, 5884630), (4465, 4707704), (7144, 2942315), (8930, 2353852), (17860, 1176926), (35720, 588463)]