216221415

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{1237}}^1$

素因数の和:1559

約数の個数: 32

約数和(自身を含む): 355593216

約数和(自身を除く): 139371801

約数列:

[1, 3, 5, 15, 43, 129, 215, 271, 645, 813, 1237, 1355, 3711, 4065, 6185, 11653, 18555, 34959, 53191, 58265, 159573, 174795, 265955, 335227, 797865, 1005681, 1676135, 5028405, 14414761, 43244283, 72073805, 216221415]

約数ペア:

[(1, 216221415), (3, 72073805), (5, 43244283), (15, 14414761), (43, 5028405), (129, 1676135), (215, 1005681), (271, 797865), (645, 335227), (813, 265955), (1237, 174795), (1355, 159573), (3711, 58265), (4065, 53191), (6185, 34959), (11653, 18555)]