213401691

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{15427}}^1$

素因数の和:15515

約数の個数: 24

約数和(自身を含む): 324913680

約数和(自身を除く): 111511989

約数列:

[1, 3, 9, 29, 53, 87, 159, 261, 477, 1537, 4611, 13833, 15427, 46281, 138843, 447383, 817631, 1342149, 2452893, 4026447, 7358679, 23711299, 71133897, 213401691]

約数ペア:

[(1, 213401691), (3, 71133897), (9, 23711299), (29, 7358679), (53, 4026447), (87, 2452893), (159, 1342149), (261, 817631), (477, 447383), (1537, 138843), (4611, 46281), (13833, 15427)]