21084098450

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{191}}^1\times {\mathrm{21859}}^1$

素因数の和:22163

約数の個数: 48

約数和(自身を含む): 39813880320

約数和(自身を除く): 18729781870

約数列:

[1, 2, 5, 10, 25, 50, 101, 191, 202, 382, 505, 955, 1010, 1910, 2525, 4775, 5050, 9550, 19291, 21859, 38582, 43718, 96455, 109295, 192910, 218590, 482275, 546475, 964550, 1092950, 2207759, 4175069, 4415518, 8350138, 11038795, 20875345, 22077590, 41750690, 55193975, 104376725, 110387950, 208753450, 421681969, 843363938, 2108409845, 4216819690, 10542049225, 21084098450]

約数ペア:

[(1, 21084098450), (2, 10542049225), (5, 4216819690), (10, 2108409845), (25, 843363938), (50, 421681969), (101, 208753450), (191, 110387950), (202, 104376725), (382, 55193975), (505, 41750690), (955, 22077590), (1010, 20875345), (1910, 11038795), (2525, 8350138), (4775, 4415518), (5050, 4175069), (9550, 2207759), (19291, 1092950), (21859, 964550), (38582, 546475), (43718, 482275), (96455, 218590), (109295, 192910)]