21865298

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 22260910

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 37, 74, 91, 119, 182, 191, 221, 238, 259, 382, 442, 481, 518, 629, 962, 1258, 1337, 1547, 2483, 2674, 3094, 3247, 3367, 4403, 4966, 6494, 6734, 7067, 8177, 8806, 14134, 16354, 17381, 22729, 34762, 42211, 45458, 49469, 57239, 84422, 91871, 98938, 114478, 120139, 183742, 240278, 295477, 590954, 643097, 840973, 1286194, 1561807, 1681946, 3123614, 10932649, 21865298]

約数ペア:

[(1, 21865298), (2, 10932649), (7, 3123614), (13, 1681946), (14, 1561807), (17, 1286194), (26, 840973), (34, 643097), (37, 590954), (74, 295477), (91, 240278), (119, 183742), (182, 120139), (191, 114478), (221, 98938), (238, 91871), (259, 84422), (382, 57239), (442, 49469), (481, 45458), (518, 42211), (629, 34762), (962, 22729), (1258, 17381), (1337, 16354), (1547, 14134), (2483, 8806), (2674, 8177), (3094, 7067), (3247, 6734), (3367, 6494), (4403, 4966)]