18218452

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 38133760

約数和(自身を除く): 19915308

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 139, 151, 217, 278, 302, 434, 556, 604, 868, 973, 1057, 1946, 2114, 3892, 4228, 4309, 4681, 8618, 9362, 17236, 18724, 20989, 30163, 32767, 41978, 60326, 65534, 83956, 120652, 131068, 146923, 293846, 587692, 650659, 1301318, 2602636, 4554613, 9109226, 18218452]

約数ペア:

[(1, 18218452), (2, 9109226), (4, 4554613), (7, 2602636), (14, 1301318), (28, 650659), (31, 587692), (62, 293846), (124, 146923), (139, 131068), (151, 120652), (217, 83956), (278, 65534), (302, 60326), (434, 41978), (556, 32767), (604, 30163), (868, 20989), (973, 18724), (1057, 17236), (1946, 9362), (2114, 8618), (3892, 4681), (4228, 4309)]