12381015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2111}}^1$

素因数の和:2159

約数の個数: 32

約数和(自身を含む): 21897216

約数和(自身を除く): 9516201

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 2111, 5865, 6333, 10555, 31665, 35887, 48553, 107661, 145659, 179435, 242765, 538305, 728295, 825401, 2476203, 4127005, 12381015]

約数ペア:

[(1, 12381015), (3, 4127005), (5, 2476203), (15, 825401), (17, 728295), (23, 538305), (51, 242765), (69, 179435), (85, 145659), (115, 107661), (255, 48553), (345, 35887), (391, 31665), (1173, 10555), (1955, 6333), (2111, 5865)]