21465950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1259}}^1$

素因数の和:1313

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 23531170

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 50, 55, 62, 110, 155, 275, 310, 341, 550, 682, 775, 1259, 1550, 1705, 2518, 3410, 6295, 8525, 12590, 13849, 17050, 27698, 31475, 39029, 62950, 69245, 78058, 138490, 195145, 346225, 390290, 429319, 692450, 858638, 975725, 1951450, 2146595, 4293190, 10732975, 21465950]

約数ペア:

[(1, 21465950), (2, 10732975), (5, 4293190), (10, 2146595), (11, 1951450), (22, 975725), (25, 858638), (31, 692450), (50, 429319), (55, 390290), (62, 346225), (110, 195145), (155, 138490), (275, 78058), (310, 69245), (341, 62950), (550, 39029), (682, 31475), (775, 27698), (1259, 17050), (1550, 13849), (1705, 12590), (2518, 8525), (3410, 6295)]