20712208

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{859}}^1$

素因数の和:1015

約数の個数: 40

約数和(自身を含む): 44148960

約数和(自身を除く): 23436752

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 137, 176, 274, 548, 859, 1096, 1507, 1718, 2192, 3014, 3436, 6028, 6872, 9449, 12056, 13744, 18898, 24112, 37796, 75592, 117683, 151184, 235366, 470732, 941464, 1294513, 1882928, 2589026, 5178052, 10356104, 20712208]

約数ペア:

[(1, 20712208), (2, 10356104), (4, 5178052), (8, 2589026), (11, 1882928), (16, 1294513), (22, 941464), (44, 470732), (88, 235366), (137, 151184), (176, 117683), (274, 75592), (548, 37796), (859, 24112), (1096, 18898), (1507, 13744), (1718, 12056), (2192, 9449), (3014, 6872), (3436, 6028)]