20743786

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 16269974

約数列:

[1, 2, 7, 14, 41, 71, 82, 142, 287, 497, 509, 574, 994, 1018, 2911, 3563, 5822, 7126, 20377, 20869, 36139, 40754, 41738, 72278, 146083, 252973, 292166, 505946, 1481699, 2963398, 10371893, 20743786]

約数ペア:

[(1, 20743786), (2, 10371893), (7, 2963398), (14, 1481699), (41, 505946), (71, 292166), (82, 252973), (142, 146083), (287, 72278), (497, 41738), (509, 40754), (574, 36139), (994, 20869), (1018, 20377), (2911, 7126), (3563, 5822)]