21894730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 47246976

約数和(自身を除く): 25352246

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 61, 65, 110, 122, 130, 143, 251, 286, 305, 502, 610, 671, 715, 793, 1255, 1342, 1430, 1586, 2510, 2761, 3263, 3355, 3965, 5522, 6526, 6710, 7930, 8723, 13805, 15311, 16315, 17446, 27610, 30622, 32630, 35893, 43615, 71786, 76555, 87230, 153110, 168421, 179465, 199043, 336842, 358930, 398086, 842105, 995215, 1684210, 1990430, 2189473, 4378946, 10947365, 21894730]

約数ペア:

[(1, 21894730), (2, 10947365), (5, 4378946), (10, 2189473), (11, 1990430), (13, 1684210), (22, 995215), (26, 842105), (55, 398086), (61, 358930), (65, 336842), (110, 199043), (122, 179465), (130, 168421), (143, 153110), (251, 87230), (286, 76555), (305, 71786), (502, 43615), (610, 35893), (671, 32630), (715, 30622), (793, 27610), (1255, 17446), (1342, 16315), (1430, 15311), (1586, 13805), (2510, 8723), (2761, 7930), (3263, 6710), (3355, 6526), (3965, 5522)]