21607586

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 44706816

約数和(自身を除く): 23099230

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 43, 77, 86, 91, 143, 154, 182, 251, 286, 301, 473, 502, 559, 602, 946, 1001, 1118, 1757, 2002, 2761, 3263, 3311, 3514, 3913, 5522, 6149, 6526, 6622, 7826, 10793, 12298, 19327, 21586, 22841, 35893, 38654, 43043, 45682, 71786, 75551, 86086, 118723, 140309, 151102, 237446, 251251, 280618, 502502, 831061, 982163, 1543399, 1662122, 1964326, 3086798, 10803793, 21607586]

約数ペア:

[(1, 21607586), (2, 10803793), (7, 3086798), (11, 1964326), (13, 1662122), (14, 1543399), (22, 982163), (26, 831061), (43, 502502), (77, 280618), (86, 251251), (91, 237446), (143, 151102), (154, 140309), (182, 118723), (251, 86086), (286, 75551), (301, 71786), (473, 45682), (502, 43043), (559, 38654), (602, 35893), (946, 22841), (1001, 21586), (1118, 19327), (1757, 12298), (2002, 10793), (2761, 7826), (3263, 6622), (3311, 6526), (3514, 6149), (3913, 5522)]